{"id":2048,"date":"2022-09-23T13:54:00","date_gmt":"2022-09-23T20:54:00","guid":{"rendered":"https:\/\/www.alconlighting.com\/blog\/?p=2048"},"modified":"2024-07-02T01:22:54","modified_gmt":"2024-07-02T08:22:54","slug":"how-do-i-determine-how-many-led-lumens-i-need-for-a-space","status":"publish","type":"post","link":"https:\/\/www.alconlighting.com\/blog\/residential-led-lighting\/how-do-i-determine-how-many-led-lumens-i-need-for-a-space\/","title":{"rendered":"Lumens Calculator: How to Determine Total Required Lumens for Your Space"},"content":{"rendered":"\n<p>How much light is enough to light a room? Most designers and architects use <a href=\"https:\/\/www.alconlighting.com\/blog\/learning-lab\/intro-to-lighting-design\/\">two foundational principles of lighting design<\/a> when planning and specifying lighting for any space:<\/p>\n\n\n\n<ul>\n<li><span style=\"font-family: Georgia, Palatino; font-size: 14pt;\">the <strong>qualitative<\/strong> (or aesthetic) aspect of light&nbsp;<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Georgia, Palatino; font-size: 14pt;\">the <strong>quantitative<\/strong> (or engineering) aspect of light<\/span><\/li>\n<\/ul>\n\n\n\n<p>Calculating for total lighting required is considered quantitative.<\/p>\n\n\n\n<p>The <strong>lumen method <\/strong>is the most commonly used formula for calculating the total lighting requirements needed for a space. With this formula, first establish the intended use of the space, then reference the <a href=\"https:\/\/www.alconlighting.com\/catalogue\/FootcandleLightGuideALCON.pdf\">IES foot candle guide<\/a> and finally, multiply the foot candle recommendation by the square footage of your space. <\/p>\n\n\n\n<p>You can also use the <a href=\"#lumens-calculator\">lumens calculator<\/a> below the table of contents. If you are new to this type of calculation, read the guide below the calculator to understand the difference between wattage, lumens and other concepts that play a role in adequately lighting for a space.<\/p>\n\n\n\n<div class=\"wp-block-yoast-seo-table-of-contents yoast-table-of-contents\"><h2>Table of contents<\/h2><ul><li><a href=\"#lumens-calculator\" data-level=\"2\">Lumens Calculator<\/a><\/li><li><a href=\"#lighting-terms\" data-level=\"2\">Helpful Lighting Terms<\/a><\/li><li><a href=\"#lumen-method\" data-level=\"2\">The Lumen Method \u2013 How to Calculate Total Lumens Needed<\/a><\/li><li><a href=\"#foot-candles\" data-level=\"2\">Footcandle Requirements for Various Applications<\/a><\/li><li><a href=\"#calculate-total-lumens-needed\" data-level=\"2\">Summary: Calculating Total Lumens Needed for a Room<\/a><ul><li><a href=\"#ceiling-height-variable\" data-level=\"3\">Ceiling Height Variable<\/a><\/li><li><a href=\"#wall-color-variable\" data-level=\"3\">Wall Color Variable<\/a><\/li><\/ul><\/li><li><a href=\"#personal-taste\" data-level=\"2\">Accounting for Personal Taste<\/a><\/li><\/ul><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"lumens-calculator\"><span style=\"font-family: Georgia, Palatino; font-size: 18pt; font-weight: bold;\">Lumens Calculator<\/span><\/h2>\n\n\n\n<p>Use this calculator to calculate&nbsp;the lumens needed to light a room. These calculations work for typical ceilings that are eight to ten feet high. For taller ceiling heights, please see our chart below.<\/p>\n\n\n\n<style>\n    .js-calc-wrapper {\n        height: auto;\n        display: block;\n        border: 4px solid #4b4b4c;\n        line-height: 32px;\n        width: 400px;\n        padding: 5px 5px 20px;\n\n        > label {\n            font-family: IBM Plex Mono, 'BlinkMacSystemFont', -apple-system, 'Roboto', 'Lucida Sans';\n            text-transform: uppercase;\n            clear: left;\n            font-size: 11px;\n            color: rgba(0, 0, 0, .75);\n            margin: 0 0 10px;\n            font-weight: 500;\n            box-sizing: border-box;\n            display: inline-block;\n            text-size-adjust: 100%;\n        }\n\n        label.label-radio {\n            box-sizing: border-box;\n            display: block;\n            margin: 0;\n            padding: 0;\n            font-family: Georgia, BlinkMacSystemFont, -apple-system, Roboto, \"Lucida Sans\";\n            font-size: 20px;\n            font-weight: 400;\n            line-height: 32px;\n            text-size-adjust: 100%;\n            word-break: break-word;\n            color: rgb(10, 10, 10);\n            text-transform: none;\n        }\n\n        > .calc-head {\n            background: #04a2da;\n            color: #fff;\n            font-size: 24px;\n            height: auto;\n            padding: 13px 0 10px 13px;\n            margin-bottom: 10px;\n            text-align: center;\n        }\n    }\n\n    #calc-result {\n        width: 400px;\n        display: flex;\n    }\n\n    @media screen and (max-width: 413px) {\n        .js-calc-wrapper {\n            width: 100%;\n            margin: 10px 10px 0 0;\n            padding: 5px 5px 20px;\n        }\n\n        #calc-result {\n            width: 100%;\n        }\n    }\n\n    .js-select-room-type {\n        font-family: IBM Plex Mono, 'BlinkMacSystemFont', -apple-system, 'Roboto', 'Lucida Sans';\n        line-height: 1.15;\n        font-size: 11px;\n        margin-left: 10px;\n        margin-right: 3px;\n        transition: all .2s ease;\n        text-transform: none;\n        position: relative;\n        display: inline-block;\n        width: 50%;\n        border: 1px solid #ccc;\n\n        padding: 5px;\n        cursor: pointer;\n    }\n\n    .js-select-room-type-options {\n        display: none;\n        position: absolute;\n        top: 100%;\n        left: 0;\n        background-color: #fff;\n        border: 1px solid #ccc;\n        border-top: none;\n        width: 100%;\n        max-height: 200px;\n        overflow-y: auto;\n        z-index: 1;\n    }\n\n    .select-room-type-option {\n        padding: 8px 10px;\n        cursor: pointer;\n    }\n\n    .select-room-type-option:hover {\n        background-color: #f4f4f4;\n    }\n\n    #submit {\n        background: #04a2da;\n        display: block;\n        margin: auto;\n        font-size: 12px;\n        margin-top: 10px;\n        font-family: Georgia, 'BlinkMacSystemFont', -apple-system, 'Roboto', 'Lucida Sans';\n        -webkit-border-radius: 0;\n        border-radius: 0;\n    }\n\n    \/* -- quantity box -- *\/\n    .quantity {\n        display: inline-block;\n    }\n\n    .quantity.buttons_added {\n        text-align: left;\n        position: relative;\n        white-space: nowrap;\n        vertical-align: top;\n    }\n\n    .quantity.buttons_added input {\n        display: inline-block;\n        margin: 0;\n        vertical-align: top;\n        box-shadow: none;\n    }\n\n    .quantity input::-webkit-outer-spin-button,\n    .quantity input::-webkit-inner-spin-button {\n        -webkit-appearance: none;\n        -moz-appearance: none;\n        margin: 0;\n    }\n\n    .error {\n        color: red;\n        font-size: 14px !important;\n        display: none;\n        margin: 0.0rem 0.0rem 0.25rem 0.0rem;\n    }\n<\/style>\n<div class=\"js-calc-wrapper\">\n    <div id=\"calculator\" class=\"calc-head\">LUMEN\/WATT CALCULATOR<\/div>\n    <label>Select Room type<\/label>\n    <div class=\"js-select-room-type\">\n        <div class=\"select-room-type-selected\">Bedroom<\/div>\n        <div class=\"js-select-room-type-options\">\n            <div class=\"select-room-type-option\" data-value=\"0\">Bedroom<\/div>\n            <div class=\"select-room-type-option\" data-value=\"1\">Living room<\/div>\n            <div class=\"select-room-type-option\" data-value=\"2\">Kitchen<\/div>\n            <div class=\"select-room-type-option\" data-value=\"3\">Passage\/lobby<\/div>\n            <div class=\"select-room-type-option\" data-value=\"4\">Balcony\/Stairs<\/div>\n            <div class=\"select-room-type-option\" data-value=\"5\">Conference<\/div>\n            <div class=\"select-room-type-option\" data-value=\"6\">Bathroom<\/div>\n            <div class=\"select-room-type-option\" data-value=\"7\">Office<\/div>\n            <div class=\"select-room-type-option\" data-value=\"8\">Dining Room<\/div>\n            <div class=\"select-room-type-option\" data-value=\"9\">Waiting<\/div>\n            <div class=\"select-room-type-option\" data-value=\"10\">Warehouse<\/div>\n            <div class=\"select-room-type-option\" data-value=\"11\">Classroom<\/div>\n            <div class=\"select-room-type-option\" data-value=\"12\">Supermarket<\/div>\n            <div class=\"select-room-type-option\" data-value=\"13\">Shops<\/div>\n            <div class=\"select-room-type-option\" data-value=\"14\">Showroom<\/div>\n            <div class=\"select-room-type-option\" data-value=\"15\">Restaurant<\/div>\n            <div class=\"select-room-type-option\" data-value=\"16\">Hospital<\/div>\n            <div class=\"select-room-type-option\" data-value=\"17\">Library<\/div>\n        <\/div>\n    <\/div>\n    <div>\n        <label class=\"label-radio\">Measurement Unit<\/label>\n        <input id=\"c_feet\" checked=\"checked\" name=\"unit\" type=\"radio\" value=\"0.092903\"\/>\n        <label class=\"custom-label\" for=\"c_feet\">Feet<\/label>\n        <input id=\"c_inches\" class=\"\" name=\"unit\" type=\"radio\" value=\"0.00064516\"\/>\n        <label class=\"custom-label\" for=\"c_inches\">Inches<\/label>\n        <input id=\"c_meters\" name=\"unit\" type=\"radio\" value=\"1\"\/>\n        <label class=\"custom-label\" for=\"c_meters\">Meters<\/label><br \/>\n    <\/div>\n\n    <div class=\"quantity buttons_added\" id=\"row-width\">\n        <label for=\"width\">Width<\/label>\n        <input type=\"number\" id=\"width\" min=\"0\" step=\"0.01\" pattern=\"\\d*\" value=\"12\" data-last-valid=\"12\"\/>\n    <\/div>\n    <div class=\"quantity buttons_added\" id=\"row-length\">\n        <label for=\"length\">Length<\/label>\n        <input type=\"number\" id=\"length\" min=\"0\" step=\"0.01\" pattern=\"\\d*\" value=\"12\" data-last-valid=\"12\"\/>\n    <\/div>\n\n    <div>\n        <label class=\"label-radio\">Illumination Intensity<\/label>\n        <input id=\"c_low\" name=\"intensity\" type=\"radio\" value=\"1\"\/> <label class=\"custom-label\" for=\"c_low\">Low<\/label>\n        <input id=\"c_medium\" checked=\"checked\" name=\"intensity\" type=\"radio\" value=\"2\"\/><label class=\"custom-label\" for=\"c_medium\">Medium<\/label>\n        <input id=\"c_high\" name=\"intensity\" type=\"radio\" value=\"3\"\/> <label class=\"custom-label\" for=\"c_high\">High<\/label><br \/>\n    <\/div>\n    <div>\n        <label class=\"label-radio\">Wall Color<\/label>\n        <input id=\"c_light\" checked=\"checked\" name=\"wallcolor\" type=\"radio\" value=\"1\"\/> <label class=\"custom-label\" for=\"c_light\">Light<\/label>\n        <input id=\"c_dark\" name=\"wallcolor\" type=\"radio\" value=\"2\"\/> <label class=\"custom-label\" for=\"c_dark\">Dark<\/label><br \/>\n    <\/div>\n    <div>\n        <label class=\"label-radio\">Light Placement<\/label>\n        <input id=\"c_center\" checked=\"checked\" name=\"placement\" type=\"radio\" value=\"1\"\/> <label class=\"custom-label\" for=\"c_center\">Center<\/label>\n        <input id=\"c_corners\" name=\"placement\" type=\"radio\" value=\"1.1\"\/><label class=\"custom-label\" for=\"c_corners\">Corners<\/label>\n    <\/div>\n    <p class=\"error\" id=\"error-message\">All field must be filled positive numbers.<\/p>\n    <div>\n        <input id=\"submit\" name=\"Submit\" type=\"submit\" value=\"Calculate\"\/>\n    <\/div>\n<\/div>\n<div id=\"calc-result\">&nbsp;<\/div>\n<div id=\"summary\">&nbsp;<\/div>\n<script>\n    var room_option = [\n        ['Bedroom', 10, 15, 20],\n        ['Living room', 10, 15, 20],\n        ['Kitchen', 30, 35, 40],\n        ['Passage\/lobby', 10, 30, 50],\n        ['Balcony\/Stairs', 5, 15, 30],\n        ['Conference', 20, 45, 70],\n        ['Bathroom', 20, 35, 50],\n        ['Office', 50, 60, 75],\n        ['Dining Room', 30, 35, 40],\n        ['Waiting', 10, 15, 20],\n        ['Warehouse', 10, 30, 50],\n        ['Classroom', 30, 65, 100],\n        ['Supermarket', 60, 130, 200],\n        ['Shops', 30, 65, 100],\n        ['Showroom', 60, 130, 200],\n        ['Restaurant', 20, 35, 50],\n        ['Hospital', 10, 20, 30],\n        ['Library', 50, 75, 100]\n    ];\n    var roomIndex = 0;\n    var roomType = room_option[roomIndex][0];\n    var widthValue = 12;\n    var lengthValue = 12;\n\n    document.addEventListener(\"DOMContentLoaded\", function() {\n        var calcWrapper = document.querySelector('.js-calc-wrapper');\n        var customSelect = calcWrapper.querySelector('.js-select-room-type');\n        var customSelected = customSelect.querySelector('.select-room-type-selected');\n        var customOptions = customSelect.querySelector('.js-select-room-type-options');\n        var customOptionList = customSelect.querySelectorAll('.select-room-type-option');\n        var calcButton = calcWrapper.querySelector('#submit');\n\n        var resultContainer = document.querySelector('#calc-result');\n\n        customSelected.addEventListener('click', function() {\n            customOptions.style.display = customOptions.style.display === 'block' ? 'none' : 'block';\n        });\n\n        customOptionList.forEach(function(option) {\n            option.addEventListener('click', function() {\n                customSelected.textContent = option.textContent;\n                roomIndex = option.dataset.value;\n                roomType = room_option[roomIndex][0]\n                customOptions.style.display = 'none';\n            });\n        });\n\n        document.addEventListener('click', function(event) {\n            if (!customSelect.contains(event.target)) {\n                customOptions.style.display = 'none';\n            }\n        });\n\n        if (calcButton) {\n            calcButton.addEventListener('click', () => validateForm(), false);\n        }\n\n        function validateInput(event) {\n            const input = event.target;\n            const value = input.value;\n            const regex = \/^[0-9]*\\.?[0-9]*$\/;\n\n            if (regex.test(value) && (!value || parseFloat(value) > 0)) {\n                input.setAttribute('data-last-valid', value);\n            } else {\n                input.value = input.getAttribute('data-last-valid');\n            }\n        }\n\n        function validateForm(event) {\n            const inputs = calcWrapper.querySelectorAll('input[type=\"text\"], input[type=\"number\"]');\n            let allValid = true;\n            inputs.forEach(input => {\n                if (!input.value || parseFloat(input.value) <= 0) {\n                    allValid = false;\n                }\n            });\n\n            if (!allValid) {\n                calcWrapper.querySelector('#error-message').style.display = 'block';\n            } else {\n                calcWrapper.querySelector('#error-message').style.display = 'none';\n                calcResult();\n            }\n        }\n\n        calcWrapper.querySelector('input[id=\"width\"]').addEventListener(\"input\", validateInput);\n        calcWrapper.querySelector('input[id=\"length\"]').addEventListener(\"input\", validateInput);\n\n        async function calcResult(event) {\n            return new Promise(resolve => {\n                widthValue = calcWrapper.querySelector('input[id=\"width\"]').value;\n                lengthValue = calcWrapper.querySelector('input[id=\"length\"]').value;\n                var unitValue = calcWrapper.querySelector('input[name=\"unit\"]:checked').value;\n                var wallColorValue = calcWrapper.querySelector('input[name=\"wallcolor\"]:checked').value;\n                var placement = calcWrapper.querySelector('input[name=\"placement\"]:checked').value;\n                var intensityValue = calcWrapper.querySelector('input[name=\"intensity\"]:checked').value;\n\n                var lux_intensity = room_option[roomIndex][intensityValue];\n                var area = parseFloat(widthValue) * parseFloat(lengthValue);\n                var areaUnit = area * parseFloat(unitValue);\n                var lumens = Math.ceil(areaUnit * 10.7639) * lux_intensity;\n                lumens *= parseFloat(wallColorValue);\n                lumens *= parseFloat(placement);\n                var watts = Math.ceil(lumens \/ 80);\n                lumens = Math.ceil(lumens);\n                var printArea = Math.ceil(areaUnit * 10.7639);\n                if (resultContainer !== null) {\n                    resultContainer.innerHTML = '<div class=\"luxResult\">' + lumens + ' lumens or ' + watts + ' LED watts are required to illuminate your ' + roomType + ' of <b> ' + printArea + ' Foot&sup2;<\/b> (sq.ft)<\/div>';\n                }\n                resolve();\n            });\n        }\n    });\n<\/script>\n\n\n\n<p>Please note that these are estimations. For exact analysis, please consult a lighting design professional.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"lighting-terms\"><span style=\"font-family: Georgia, Palatino; font-size: 18pt; font-weight: bold;\">Helpful Lighting Terms<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span style=\"font-family: Georgia, Palatino; font-size: 16pt; font-weight: bold;\">Lumen<\/span><\/h3>\n\n\n\n<p>Lumen output is a measurement of the total quantity of visible light emitted by a light source. It\u2019s also commonly known as brightness or light output.<\/p>\n\n\n\n<p>The reference point: A standard 100-watt incandescent light bulb produces about 1,500-1,700 lumens. Strictly speaking, 600 LED lumens provides the same amount of light as 600 incandescent lumens.&nbsp;<\/p>\n\n\n\n<p>LED lights provide higher Color Rendering Index (CRI), so, while they more accurately reveal the colors of the subject being lighted, they don\u2019t provide more light.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span style=\"font-family: Georgia, Palatino; font-size: 16pt; font-weight: bold;\">Wattage<\/span><\/h3>\n\n\n\n<p>Wattage is a measure of how much electricity (or energy) a light bulb consumes to achieve its lumen output.<\/p>\n\n\n\n<p>Each type of light source \u2014 LED, fluorescent, halogen or incandescent bulbs \u2014 has a different <strong>lumen-to-watt ratio<\/strong>. If a 100-watt incandescent light produces 1,500 lumens, and a 10-watt LED light does the same, the 10-watt LED bulb may claim 100-watt equivalency and energy efficiency.&nbsp;<\/p>\n\n\n\n<p>Here\u2019s a lumen-to-watt chart. Please note that these ratios may vary slightly, even between different&nbsp; LED products.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Bulb-Chart-Graphic.png\" class=\"mfp-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1000\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Bulb-Chart-Graphic.png\" alt=\"Lumen-to-watt chart showing the conversion ratio of 800 lumens for 4 bulb types. LED 8-10W; CFL 13-14W; Regular incandescent 60W; Halogen 43W\" class=\"wp-image-6900 lazyload\" data-sizes=\"auto\" data-srcset=\"https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=1600\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Bulb-Chart-Graphic.png 1600w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=400\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Bulb-Chart-Graphic.png 400w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=1024\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Bulb-Chart-Graphic.png 1024w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=768\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Bulb-Chart-Graphic.png 768w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=1536\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Bulb-Chart-Graphic.png 1536w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=370\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Bulb-Chart-Graphic.png 370w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=800\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Bulb-Chart-Graphic.png 800w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=20\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Bulb-Chart-Graphic.png 20w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=185\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Bulb-Chart-Graphic.png 185w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=740\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Bulb-Chart-Graphic.png 740w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=77\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Bulb-Chart-Graphic.png 77w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><\/div>\n\n\n<h3 class=\"wp-block-heading\"><span style=\"font-family: Georgia, Palatino; font-size: 16pt; font-weight: bold;\">Foot-candle<\/span><\/h3>\n\n\n\n<p>Foot-candle is the original measurement system for light intensity on a one-square-foot surface from a uniform source of light. In other words, a foot-candle is the light measured one foot away from a candle.<\/p>\n\n\n\n<p>Considering the <a href=\"https:\/\/www.alconlighting.com\/blog\/lighting-design\/top-five-human-centric-principles-of-light\/\">human-centric principles of lighting design<\/a>, the IES (the largest society of professional lighting designers) provides a <a href=\"https:\/\/www.alconlighting.com\/catalogue\/FootcandleLightGuideALCON.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">footcandle chart<\/a> on how many foot-candles of light humans need to perform tasks comfortably in different spaces.<\/p>\n\n\n\n<p>For example, for washing dishes, they recommend that your lighting provides 20 foot-candles of light at two feet, six inches off the floor. This is also referred to as the <strong>horizontal target<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><a href=\"https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Updated-Lumen-Graphics-2.png\" class=\"mfp-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1000\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Updated-Lumen-Graphics-2.png\" alt=\"\" class=\"wp-image-6955 lazyload\" data-sizes=\"auto\" data-srcset=\"https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=1600\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Updated-Lumen-Graphics-2.png 1600w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=400\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Updated-Lumen-Graphics-2.png 400w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=1024\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Updated-Lumen-Graphics-2.png 1024w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=768\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Updated-Lumen-Graphics-2.png 768w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=1536\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Updated-Lumen-Graphics-2.png 1536w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=370\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Updated-Lumen-Graphics-2.png 370w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=800\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Updated-Lumen-Graphics-2.png 800w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=20\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Updated-Lumen-Graphics-2.png 20w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=185\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Updated-Lumen-Graphics-2.png 185w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=740\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Updated-Lumen-Graphics-2.png 740w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=77\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Updated-Lumen-Graphics-2.png 77w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/a><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"lumen-method\"><span style=\"font-family: Georgia, Palatino; font-size: 18pt; font-weight: bold;\">The Lumen Method \u2013 How to Calculate Total Lumens Needed<\/span><\/h2>\n\n\n\n<ol>\n<li><span style=\"font-family: Georgia, Palatino; font-size: 14pt;\"><strong>Determine room size by square footage.<\/strong> Multiply the length times the width of the room to get the room square footage. For example, if the room is 10 feet wide and 10 feet long, the room&#8217;s square footage will be 100 square feet.<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Georgia, Palatino; font-size: 14pt;\"><strong>Establish the footcandle requirement for your application<\/strong>. Lighting requirements vary depending on the type of room being lit, also known as the <a href=\"https:\/\/www.alconlighting.com\/shop-by-application.html\">application<\/a>. For example, a bathroom or kitchen will require more footcandles than a living room or bedroom. Once you establish the intended use of your space, browse this <a href=\"https:\/\/www.alconlighting.com\/catalogue\/FootcandleLightGuideALCON.pdf\">footcandle chart<\/a> for the IES-recommended footcandle requirement for your application.<\/span><\/li>\n\n\n\n<li><span style=\"font-family: Georgia, Palatino; font-size: 14pt;\"><strong>Multiply the room square footage by the footcandle requirement.<\/strong> <\/span>For example, a 100-square-foot living room that needs 20 foot-candles will need 2,000 lumens, and a 100-square-foot dining room that needs 40 foot-candles will require 4,000 lumens.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"640\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Screen-Shot-2020-05-21-at-8.37.37-AM-1024x640.png\" alt=\"Graphic that compares total lumen output in a living room to a dining room with 3 lamps (220 lumens each) and a ceiling fan with a ceiling light in a dining room\" class=\"wp-image-5927 lazyload\" data-sizes=\"auto\" data-srcset=\"https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=1024\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Screen-Shot-2020-05-21-at-8.37.37-AM-1024x640.png 1024w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=400\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Screen-Shot-2020-05-21-at-8.37.37-AM-1024x640.png 400w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=768\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Screen-Shot-2020-05-21-at-8.37.37-AM-1024x640.png 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"639\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Preferred-Lighting-Layout-04-1024x639.png\" alt=\"Graphic showing the preferred LED lighting layout. LED lights placed towards the center of the room are more efficient than lights placed in the corners\" class=\"wp-image-6935 lazyload\" data-sizes=\"auto\" data-srcset=\"https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=1024\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Preferred-Lighting-Layout-04-1024x639.png 1024w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=400\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Preferred-Lighting-Layout-04-1024x639.png 400w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=768\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Preferred-Lighting-Layout-04-1024x639.png 768w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=370\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Preferred-Lighting-Layout-04-1024x639.png 370w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=800\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Preferred-Lighting-Layout-04-1024x639.png 800w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=20\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Preferred-Lighting-Layout-04-1024x639.png 20w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=185\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Preferred-Lighting-Layout-04-1024x639.png 185w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=740\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Preferred-Lighting-Layout-04-1024x639.png 740w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=77\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Preferred-Lighting-Layout-04-1024x639.png 77w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>We\u2019ve created a helpful guide to <a href=\"https:\/\/www.alconlighting.com\/media\/AlconLighting_DeterminingLumens.pdf\"><strong>How Many Lumens You Need<\/strong><\/a> that walks you through this calculation in more detail.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"foot-candles\"><span style=\"font-family: Georgia, Palatino; font-size: 18pt; font-weight: bold;\">Footcandle Requirements for Various Applications<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span style=\"font-family: Georgia, Palatino; font-size: 16pt; font-weight: bold;\">Commercial Lighting Footcandle Requirements<\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Room<\/th><th>Foot-candles Needed<\/th><\/tr><\/thead><tbody><tr><td>Offices: Average Reading and Writing<\/td><td>50-75<\/td><\/tr><tr><td>Offices: Hallways<\/td><td>10-20<\/td><\/tr><tr><td>Offices: Rooms with Computers<\/td><td>20-50<\/td><\/tr><tr><td>Auditoriums \/ Assembly<\/td><td>15-30<\/td><\/tr><tr><td>Hospitals: General Areas<\/td><td>10-15<\/td><\/tr><tr><td>Hospitals: Labs \/ Treatment Rooms<\/td><td>75-100<\/td><\/tr><tr><td>Libraries<\/td><td>50-100<\/td><\/tr><tr><td>Schools<\/td><td>30-100<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span style=\"font-family: Georgia, Palatino; font-size: 16pt; font-weight: bold;\">Residential Lighting Footcandle Requirements<\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Room<\/th><th>Foot-candles Needed<\/th><\/tr><\/thead><tbody><tr><td>Living Room<\/td><td>10-20<\/td><\/tr><tr><td>Kitchen: General<\/td><td>30-40<\/td><\/tr><tr><td>Kitchen: Stove<\/td><td>70-80<\/td><\/tr><tr><td>Kitchen: Sink<\/td><td>70-80<\/td><\/tr><tr><td>Dining Room<\/td><td>30-40<\/td><\/tr><tr><td>Bedroom<\/td><td>10-20<\/td><\/tr><tr><td>Hallway<\/td><td>5-10<\/td><\/tr><tr><td>Bathroom<\/td><td>70-80<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"calculate-total-lumens-needed\"><span style=\"font-family: Georgia, Palatino; font-size: 18pt; font-weight: bold;\">Summary: Calculating Total Lumens Needed for a Room<\/span><\/h2>\n\n\n\n<p>Let\u2019s recap how to gauge how much light you need for a space. Multiply your room square footage by the footcandle requirement. For example, a 100-square foot living room, which needs 20 foot candles, will need 2,000 lumens. A 100-square foot dining room, which needs 40 foot-candles, will need 4,000 lumens.<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/www.alconlighting.com\/catalogue\/FootcandleLightGuideALCON.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Download Free IES Footcandle Recommendations by Application Index  \u00bb<\/a><\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"ceiling-height-variable\"><span style=\"font-family: Georgia, Palatino; font-size: 16pt; font-weight: bold;\">Ceiling Height Variable<\/span><\/h3>\n\n\n\n<p>Note: <em>Only read this section if your ceiling height is taller than 10ft. If your ceiling height is below 10ft, our lumens calculator will be sufficient for determining the required light output for your application.<\/em><\/p>\n\n\n\n<p>The target light level for this Variable Ceiling Height Lumens Chart is 20 footcandles, with light-colored walls with a 0.90 reflectance value (for medium-dark walls, please double the required lumens). With these constraints, the chart below will provide the approximate total lumens you need for your space; divide the total lumens by the number of light fixtures you plan to use.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Room Dimensions<\/th><th>11&#8242; Ceiling<\/th><th>12&#8242; Ceiling<\/th><th>15&#8242; Ceiling<\/th><\/tr><\/thead><tbody><tr><td>12&#8242; x 12&#8242;<\/td><td>3,600 lm<\/td><td>3,900 lm<\/td><td>4,400 lm<\/td><\/tr><tr><td>15&#8242; x 15&#8242;<\/td><td>5,200 lm<\/td><td>5,400 lm<\/td><td>6,000 lm<\/td><\/tr><tr><td>15&#8242; x 20&#8242;<\/td><td>6,700 lm<\/td><td>6,900 lm<\/td><td>7,400 lm<\/td><\/tr><tr><td>20&#8242; x 20&#8242;<\/td><td>8,600 lm<\/td><td>8,900 lm<\/td><td>9,400 lm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>These calculations use 65-degree beam spread downlights, downlights with tighter beam spread require more lumens. For illumination targets different than 20 fc, multiply your required lumens by the percentage of the difference. Using a dimmer is also a helpful way to adjust the light level of your room.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"wall-color-variable\"><span style=\"font-family: Georgia, Palatino; font-size: 16pt; font-weight: bold;\">Wall Color Variable<\/span><\/h3>\n\n\n\n<p>The color and darkness of walls, ceiling and furniture absorb a significant amount of light. As mentioned, having medium-dark walls and ceilings should multiply your required total lumens by 2, and very dark surfaces should multiply your total lumens by 4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span style=\"font-family: Georgia, Palatino; font-size: 16pt; font-weight: bold;\">Lumens to Candlepower Conversion<\/span><\/h3>\n\n\n\n<p>Candlepower is a unit of measurement for luminous intensity. It expresses levels of light intensity relative to the light emitted by a candle of specific size and constituents.&nbsp;<\/p>\n\n\n\n<p>The historical candlepower is equal to 1.02 candelas. In modern usage, candlepower is sometimes used as a synonym for candela. A fixture that emits one candela of light will produce approximately one lumen of light if the fixture uses a beam spread of 65 degrees.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"personal-taste\"><span style=\"font-family: Georgia, Palatino; font-size: 18pt; font-weight: bold;\">Accounting for Personal Taste<\/span><\/h2>\n\n\n\n<p>Personal preference will play a large role&nbsp;in determining how much light you need in a space. If you like the room to be especially bright, you may want to add an additional 10-20% to our numbers and then install dimmers to adjust the light to desired levels.<\/p>\n\n\n\n<p>When lighting is properly designed in a space, you notice the room and the objects in it. In other words, you notice <em>what<\/em> the lighting illuminates, not the lighting products themselves. Bad or deficient lighting design shows up as hot spots, dark spots and unintentional shadows.<\/p>\n\n\n\n<p>Good or efficient lighting design accounts for total general and task lighting required for a space. Dynamic or superior lighting design factors the qualitative, human experience. It lights for vertical (not merely horizontal) visual impressions, such as walls \u2014 as well as ceilings with uplighting to minimize shadows and dark spots for smooth, streamlined and evenly distributed light.<\/p>\n\n\n\n<div class=\"guide-link-mobile\" style=\"margin: 40px auto; max-width: 540px;\">\n\t<span style=\"font-size:12px; font-family:IBM Plex Mono, 'BlinkMacSystemFont', -apple-system, 'Roboto', 'Lucida Sans';display: block;text-align: center;font-weight: 500;text-transform: uppercase;\nmargin-bottom: 20px;\">Download Guide<\/span>\n\n\t<a style=\"text-decoration: none;\" href=\"https:\/\/www.alconlighting.com\/media\/guides\/AlconLighting_DeterminingLumens .pdf\" target=\"_blank\" rel=\"noopener\">\n<figure class=\"custom-image-link guide-caption pdf-guide\">\t\n\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\"\n     src=\"https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,width=1024\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg\"\n     data-src=\"https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,width=1024\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg\"\n     alt=\"Designing Lighting\" class=\"thb-pinned lazyloaded\" data-sizes=\"auto\"\n     data-srcset=\"https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=400\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg 400w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=768\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg 768w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=370\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg 370w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=800\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg 800w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=20\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg 20w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=740\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg 740w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=64\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg 64w\"\n     sizes=\"(max-width: 20px) 20px, (max-width: 64px) 64px, (max-width: 370px) 370px, (max-width: 400px) 400px, (max-width: 740px) 740px, (max-width: 768px) 768px, 800px\"\n     srcset=\"https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=400\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg 400w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=768\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg 768w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=370\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg 370w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=800\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg 800w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=20\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg 20w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=740\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg 740w, https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=64\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2024\/03\/lumens-guide-thumb.jpg 64w\"\/>\n<figcaption>Download the PDF Guide<\/figcaption>\n<\/figure>\n<\/a>\n\t\t\t<div class=\"post-title\" style=\"margin-top:20px;\">\n\t\t\t\t<h6>\t\t\t\t\t\t\t\n<a href=\"https:\/\/www.alconlighting.com\/media\/guides\/AlconLighting_DeterminingLumens .pdf\" target=\"_blank\" rel=\"noopener\"><span>Determining How Many Lumens are Needed to Properly Light a Space<\/span>\n\t<\/a>\n\t<\/h6>\n\t<\/div>\n\t<aside class=\"thb-post-bottom\">\n\t\t<ul>\n\t\t\t<li>February 9, 2024 <\/li>\n\t\t<\/ul>\n\t<\/aside>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>How much light is enough? Everything you need to know to quantify adequate lighting using the lumen method to determine how many total lumens is needed for any space. Whether it&#8217;s LED lighting, fluorescent, halogen or incandescent.<\/p>\n","protected":false},"author":1,"featured_media":6133,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"no","footnotes":""},"categories":[314,356],"tags":[],"thb-sponsors":[],"ppma_author":[773,802],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.13 (Yoast SEO v20.13) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Lumens Calculator: How Many Lumens Do I Need for a Space?<\/title>\n<meta name=\"description\" content=\"Use this free calculator to see how many lumens you need to properly light a space based on room size and type, ceiling height, layout and other variables.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.alconlighting.com\/blog\/residential-led-lighting\/how-do-i-determine-how-many-led-lumens-i-need-for-a-space\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Calculate the Light Needed for Any Space\" \/>\n<meta property=\"og:description\" content=\"Determining the right amount of light for a room comes down to simple math.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.alconlighting.com\/blog\/residential-led-lighting\/how-do-i-determine-how-many-led-lumens-i-need-for-a-space\/\" \/>\n<meta property=\"og:site_name\" content=\"Insights\" \/>\n<meta property=\"article:published_time\" content=\"2022-09-23T20:54:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-07-02T08:22:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Screen-Shot-2020-05-21-at-8.37.37-AM.png\" \/>\n<meta name=\"author\" content=\"David Hakimi, Garrett Rock\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"How Much Light is Right for Your Room?\" \/>\n<meta name=\"twitter:description\" content=\"There&#039;s an easy way to learn how much light you need for a room. This free calculator can help you light any space to perfection! #lighting\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=1600\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Updated-Lumen-Graphics.png\" \/>\n<meta name=\"twitter:creator\" content=\"@https:\/\/twitter.com\/Itspaedae\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"David Hakimi\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minutes\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Lumens Calculator: How Many Lumens Do I Need for a Space?","description":"Use this free calculator to see how many lumens you need to properly light a space based on room size and type, ceiling height, layout and other variables.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.alconlighting.com\/blog\/residential-led-lighting\/how-do-i-determine-how-many-led-lumens-i-need-for-a-space\/","og_locale":"en_US","og_type":"article","og_title":"Calculate the Light Needed for Any Space","og_description":"Determining the right amount of light for a room comes down to simple math.","og_url":"https:\/\/www.alconlighting.com\/blog\/residential-led-lighting\/how-do-i-determine-how-many-led-lumens-i-need-for-a-space\/","og_site_name":"Insights","article_published_time":"2022-09-23T20:54:00+00:00","article_modified_time":"2024-07-02T08:22:54+00:00","og_image":[{"url":"https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2018\/12\/Screen-Shot-2020-05-21-at-8.37.37-AM.png"}],"author":"David Hakimi, Garrett Rock","twitter_card":"summary_large_image","twitter_title":"How Much Light is Right for Your Room?","twitter_description":"There's an easy way to learn how much light you need for a room. 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David strives for efficiency in lighting, affording architects, lighting designers and engineers the ability to maximize LED lighting design and application. David is a graduate of the University of California, Los Angeles, where he received a Bachelors in history. David also studied lighting design at IES in Los Angeles. He traces his and Alcon Lighting\u2019s commitment to innovation, accountability, quality and value to lessons learned from his father, Mike Hakimi, a lighting craftsman, salesman and consultant in Southern California for more than four decades. Today\u2019s lighting for commercial use requires a deep, complete understanding of smart lighting systems and controls. David takes pride in his lighting, energy controls and design knowledge. He is driven by the desire to share his insights into lighting specification and application. This quest to share his knowledge was the impetus for David to create Insights, Alcon Lighting\u2019s blog and resource center for helping the reader understand lighting and its application to space.","sameAs":["https:\/\/www.alconlighting.com","https:\/\/www.linkedin.com\/in\/david-p-hakimi\/","https:\/\/twitter.com\/https:\/\/twitter.com\/Itspaedae"],"url":"https:\/\/www.alconlighting.com\/blog\/author\/admin\/"}]}},"modified_by":"Anna Holubiatnikova","authors":[{"term_id":773,"user_id":1,"is_guest":0,"slug":"admin","display_name":"David Hakimi","avatar_url":{"url":"https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=90\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2023\/08\/David-Hakimi-Alcon-Lighting-Inc.-1-1-90x90.png","url2x":"https:\/\/www.alconlighting.com\/cdn-cgi\/image\/fit=contain,format=webp,quality=80,width=180\/https:\/\/www.alconlighting.com\/blog\/wp-content\/uploads\/2023\/08\/David-Hakimi-Alcon-Lighting-Inc.-1-1-180x180.png"},"first_name":"David","last_name":"Hakimi","user_url":"https:\/\/www.alconlighting.com","description":"Alcon Lighting creative director and co-founder David Hakimi works to improve lighting through research, development and education. David strives for efficiency in lighting, affording architects, lighting designers and engineers the ability to maximize LED lighting design and application. \r\n\r\nDavid is a graduate of the University of California, Los Angeles, where he received a Bachelors in history. David also studied lighting design at IES in Los Angeles. He traces his and Alcon Lighting\u2019s commitment to innovation, accountability, quality and value to lessons learned from his father, Mike Hakimi, a lighting craftsman, salesman and consultant in Southern California for more than four decades.\r\n\r\nToday\u2019s lighting for commercial use requires a deep, complete understanding of smart lighting systems and controls. David takes pride in his lighting, energy controls and design knowledge. He is driven by the desire to share his insights into lighting specification and application. This quest to share his knowledge was the impetus for David to create Insights, Alcon Lighting\u2019s blog and resource center for helping the reader understand lighting and its application to space."},{"term_id":802,"user_id":105,"is_guest":0,"slug":"garrett-rock","display_name":"Garrett Rock","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/078a704a6ad65f8193aba1f19bfe70ad?s=96&d=mm&r=g","first_name":"Garrett","last_name":"Rock","user_url":"","description":"Garrett Rock is a seasoned lighting designer based in San Francisco, California. He earned his bachelor's degree in Interior Design from the University of California, Davis, and a Master's in Architecture from the California College of the Arts. Throughout his career, Garrett has contributed to firms such as Architecture &amp; Light, Banks Landl Lighting Design, Geddes Ulinskas Architects and WSP. He currently serves as a lighting design consultant for Alcon Lighting and a technical writer for Insights, where he specializes in keeping readers current on energy regulations and in human-centric lighting guides for healthcare settings, retail and other commercial applications."}],"_links":{"self":[{"href":"https:\/\/www.alconlighting.com\/blog\/wp-json\/wp\/v2\/posts\/2048"}],"collection":[{"href":"https:\/\/www.alconlighting.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alconlighting.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alconlighting.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alconlighting.com\/blog\/wp-json\/wp\/v2\/comments?post=2048"}],"version-history":[{"count":272,"href":"https:\/\/www.alconlighting.com\/blog\/wp-json\/wp\/v2\/posts\/2048\/revisions"}],"predecessor-version":[{"id":9360,"href":"https:\/\/www.alconlighting.com\/blog\/wp-json\/wp\/v2\/posts\/2048\/revisions\/9360"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alconlighting.com\/blog\/wp-json\/wp\/v2\/media\/6133"}],"wp:attachment":[{"href":"https:\/\/www.alconlighting.com\/blog\/wp-json\/wp\/v2\/media?parent=2048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alconlighting.com\/blog\/wp-json\/wp\/v2\/categories?post=2048"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alconlighting.com\/blog\/wp-json\/wp\/v2\/tags?post=2048"},{"taxonomy":"thb-sponsors","embeddable":true,"href":"https:\/\/www.alconlighting.com\/blog\/wp-json\/wp\/v2\/thb-sponsors?post=2048"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.alconlighting.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=2048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}