LED Lighting Calculator – How Many Lumens To Light A Room? (2024)

This LED lighting calculator can calculate the number of lumens or wattage you will need for different rooms and applications. This room lighting calculator is simple to use and different outputs depending on the color scheme of your interior. Easily determine how many led bulbs you need for your room or how much wattage your room will require to have enough luminance. This resource is available to you free of charge, bookmark it for future use.

LED LIGHTING CALCULATOR

618734 Lumens OR 4759 Watts
to illuminate your Party hall of 11100 sq ft
OptionLED Light# of Bulbs
15W952
210W476
312W397
418W265

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'; option = 1; jQuery.each(led_lights, function(val, text) { nos = watts / text[1]; nos = Math.ceil(nos); result = result + ''; option++; }); result = result + '
OptionLED Light# of Bulbs
' + option + '' + text[0] + '' + nos + '

'; jQuery("#result").html(result); } });});jQuery(document).ready(function() { jQuery('form#calcForm').submit();});// ]]>

How Does This LED Wattage Calculator Work?

Simply select your room type, put in your measurements, and decide how much light (or illumination) you need in that space. Finally, select between light or dark interior and the location you will be placing your light sources. Viola! The table below the calculator will show both the lumens and wattage required for your room.

It’s best practice to go a little over the estimate when shopping for lights as LED’s do lose brightness over time and even burn out.

If you’re shopping for LED fixtures, it’s better to go off of the lumens rather than wattage as efficacy ranges between manufacturers and models.

How Many Lumens For A Bathroom?

Based on the average bathroom size, 6×10 or 60 sq ft, for medium lighting you would want around 2300 lumens. Using our calculator you can put in your own dimensions to determine the right amount of illumination for your space.

How do you calculate how many LED lights do I need?

Use out simple calculator to get the exact wattages and number of standard LED bulbs you’ll need. All you need is the measurements, desired brightness, and your planned installation style to get exactly the number of lumens you need and the approximate wattage.

Why does my wall color matter to calculate how much light I need?

LED Lighting Calculator – How Many Lumens To Light A Room? (1)

Every paint color has a Light Reflectance Value (LRV) number between 0 (for pure black) and 100 (for pure white). This number tells you exactly how reflective your paint really is. The maximum is around 94. The more light that reflects around the room, the easier it is to light that room using less lights and energy.

How much light do I need for a 12×12 room?

For an average 12′ x 12′ bedroom, you would need around 4,000 lumens of light. For a more accurate calculation, use the tool above.

LED Lighting Calculator – How Many Lumens To Light A Room? (20)

LED Lighting Calculator – How Many Lumens To Light A Room? (21)

I have been the project manager for Modern.Place since early 2016, spending three of those years working overseas on the manufacturing & procurement side of the LED lighting industry. Constantly learning and passing on knowledge to others while excited for what the lighting industry will involve into next.

LED Lighting Calculator – How Many Lumens To Light A Room? (2024)

FAQs

LED Lighting Calculator – How Many Lumens To Light A Room? ›

Summary: Calculating Total Lumens Needed for a Room

How many LED lumens does it take to light a room? ›

Kitchen: 3,000 to 4,000 lumens. Dining room: 3,000 to 4,000 lumens. Living room: 1,000 to 2,000 lumens. Bedroom: 1,000 to 2,000 lumens.

How many lumens do I need for a 12x12 room? ›

For an average 12′ x 12′ bedroom, you would need around 4,000 lumens of light.

How do I calculate LED lights for a room? ›

To determine the required lumens, you will need to multiply your room's square footage by your room foot-candle requirement. For example, a 100 sq. ft. living room, which needs 10-20 foot-candles, will need 1,000 - 2,000 lumens.

How much LED light is enough for room? ›

For example, a 9-watt LED bulb can replace a 60-watt incandescent bulb. Therefore, for a 180-square-foot bedroom, you will only need 34 watts using LED bulbs or integrated LED fixtures. This energy saving helps reduce electricity costs while creating an atmosphere conducive to relaxation and restorative sleep.

How many lumens do I need to light a dark room? ›

As a handy rule of thumb, a sitting room or bedroom will generally require around 10-20 lumens per square foot, while a bathroom or kitchen will need a stronger level of lighting, at around 70-80 lumens per square foot. To work out the lumens you need, simply multiply the square footage of the room by this figure.

Is 2000 lumens bright enough for a room? ›

To determine the needed lumens, you will need to multiply your room square footage by your room foot-candle requirement. For example, a 100 square foot living room, which needs 10-20 foot-candles, will need 1,000-2,000 lumens. A 100 square foot dining room, which needs 30-40 foot-candles, will need 3,000-4,000 lumens.

How do I choose lumens for my room? ›

For example, if your room measures 4m x 5m it has an area of 20 square metres. If you are using conventional bulbs, multiply this by 25, giving a total wattage of 500 watts, or a light level of around 5000 lumens is required.

How many lumens is best for a small room? ›

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.

How to calculate lumens per room size? ›

Formulas for Lumens Calculator
  1. A. (length * width)
  2. Reflectance (LRV) (0.2126 * R + 0.7152 * G + 0.0722 * B) 255. ...
  3. Brightness. (0.2126 * R + 0.7152 * G + 0.0722 * B)
  4. Wall Colour Adjustment. (1 - brightness) 255. ...
  5. Ceiling Height Adjustment. (log(ceiling height + 2.0)) * 20. ...
  6. Lumens. sqft. ...
  7. Lux Requirement. (Lumens)

How do I choose an LED for my room? ›

Warm and cool LEDs

Higher Kelvin light, which is anything above 7000K has a blue quality. The range between 4000—7000 Kelvin is relatively neutral in tone. In rooms where you'd like to relax, a warmer tone helps set a cozy mood. In utility rooms, kitchens, and bathrooms, a cooler, clearer light might be more ideal.

What is the lumen method for lighting calculation? ›

In its simplest form, the lumen method is merely the total number of lumens available in a room divided by the area of the room. In order to perform this calculation, many factors, coefficients, lamp lumen data and other quantities must be gathered.

How many LED can lights per room? ›

Generally, you'll need one can light for every four to six square feet. The taller your ceiling height, the more can lights you'll need. Map out your room to plan ideal recessed lighting placement.

How many lumens for bedroom light? ›

A general guideline for bedroom lighting is a total light output of 1500-3000 lumens. You can achieve this by using a combination of different light sources, such as overhead fixtures, table lamps, and wall sconces.

Can you leave LED room lights on all night? ›

LED lights may be left on all night without causing any safety risks, but doing so has certain advantages as well. For example, LED lights are perfect for use as nightlights since they emit a soft, calming glow that may help you safely explore your house at night.

How many can lights for a 12x12 room? ›

In general, a 12x12 kitchen will use a minimum of three to a maximum of nine recessed lights to illuminate the needed area.

Is 1000 lumens bright for a bedroom? ›

Generally, a lumen output of around 1,000-2,000 lumens can be considered a bright light for most indoor lighting applications, such as in living rooms, bedrooms, or kitchens.

Is 500 lumens enough to light a room? ›

It will be required to take into account more than one bulb or lamp, up to 1000 to 2000 lumens for a living room, if you want a brighter light. Anything up to 500 lumens would be suitable for ambient lighting if there is no primary source of light.

Is 1500 lumens bright enough for a bedroom? ›

Here are some general size guidelines for different types of bedrooms: Small bedrooms (less than 100 square feet): 1000-2000 lumens. Medium bedrooms (between 100-200 square feet): 2000-4000 lumens. Large bedrooms (more than 200 square feet): 4000-8000 lumens.

Is 5000 lumens bright for a flashlight? ›

For starters, the size of the space has the most impact on how bright your eyes will perceive the light to be. For example, in a small room, 5000 lumens will feel a lot brighter to the eyes than in a larger room double that size.

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