Lumens Per Square Foot: Recommended Amount Needed for a Room (2024)

Measure the Room

Lumens Per Square Foot: Recommended Amount Needed for a Room (1)

Large spaces need more lighting than small rooms. To find out how many lumens you’ll need in a given area, you need to start by measuring the room. Here’s how to quickly calculate square footage:

  • Measure the length of the room
  • Measure the width of the room
  • Multiply the length of the room times the width of the room. This is your square footage.

For example, a room that measures 10”W x 10”L has an overall size of 100 square feet.

Understand Foot Candles

Lumens Per Square Foot: Recommended Amount Needed for a Room (2)

A foot candle is a measurement that tells you how bright a light source is when standing one foot away. Understanding foot candles to lumens conversions can make it easier to determine your own lighting needs.

  • Workspace or garage: 80-100 foot candles
  • Kitchen work areas: 70-80 foot candles
  • Bathroom: 70-80 foot candles
  • Home office: 60-80 foot candles
  • Dining room: 30-40 foot candles
  • Kitchen: 30-40 foot candles
  • Dining room: 30-40 foot candles
  • Living room: 10-20 foot candles
  • Bedroom: 10-20 foot candles
  • Hallway: 5-10 foot candles

Workspaces need more foot candles on average. This is because you typically need brighter lighting in these areas than in a bedroom or living room to accomplish tasks.

Note: Some manufacturers might reference the metric version, Lux. You can convert Lux to Footcandles easily by dividing the number of Lux by 10. (approximate).

How Many Lumens Do I Need?

Lumens Per Square Foot: Recommended Amount Needed for a Room (3)

Once you’ve measured the room and calculated the required foot candles, it’s time to determine how many lumens a space needs. Multiply your room square footage by your foot candle requirement.

Here’s an example using a 100 square foot living room:

  • 100 sq. ft. X 10-20 foot candles = 1,000 to 2,000 lumens.

Lumens Quick Guide

Lumens Per Square Foot: Recommended Amount Needed for a Room (4)

Taking a few minutes to determine the recommended lumens per square foot with the method outlined above is ideal. However, if you can’t make calculations or quickly need to know how many lumens are needed per square foot for a garage or workshop, you can try the lumens quick guide below for an average estimate:

  • Workspace or garage: 8,000 to 10,000 lumens
  • Kitchen work areas: 7,000 to 8,000 lumens
  • Bathroom: 7,000 to 8,000 lumens
  • Home office: 6,000 to 8,000 lumens
  • Dining room: 3,000 to 4,000 lumens
  • 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
  • Hallway: 500 to 1,000 lumens

These are only general guidelines, and while they will work in most spaces, they may not be applicable in every scenario. Rooms with dark walls and especially high ceilings may need additional lumens for the desired effect.

Tips for Industrial and Commercial Spaces

Lumens Per Square Foot: Recommended Amount Needed for a Room (5)
  • Industrial spaces often require more lumens per square foot because of the complicated, potentially dangerous nature of work being performed. In these spaces, you’ll want to look for shop lights, wraparound lights, LED troffers and high bay lights that have higher output.
  • Commercial spaces like retail stores can utilize many of the same light types, but they may not require the same number of lumens. However, as many retail spaces feature high ceilings and large spaces, your lumen needs must be calculated on an individual basis.
  • Check local regulations to more accurately determine commercial lumens per square foot requirements and recommendations for your industrial facility.

Having the correct lighting can transform any space from dark and dull to bright and inviting. The Home Depot's wide selection of lighting helps you to create spaces that are both stylish and functional. With The Home Depot Mobile App, you can find gorgeous lighting for any room in your home. Shop online today from the comfort of your home.

Lumens Per Square Foot: Recommended Amount Needed for a Room (2024)

FAQs

Lumens Per Square Foot: Recommended Amount Needed for a Room? ›

Dining room: 3,000 to 4,000 lumens. Living room: 1,000 to 2,000 lumens. Bedroom: 1,000 to 2,000 lumens. Hallway: 500 to 1,000 lumens.

How many lumens per square foot per room? ›

This will depend on the individual room and what it's used for. 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.

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

Ceiling Height Variable
Room Dimensions11′ Ceiling12′ Ceiling
12′ x 12′3,600 lm3,900 lm
15′ x 15′5,200 lm5,400 lm
15′ x 20′6,700 lm6,900 lm
20′ x 20′8,600 lm8,900 lm
Sep 23, 2022

How do I calculate lumens 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 many square feet does 1000 lumens cover? ›

For every 100 square feet, 1000 lumens is sufficient for low-light level areas such as living rooms and lounge areas, while task-oriented spaces may require up to 3000 lumens or more.

Is 1000 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.

Is 500 lumens enough for a bedroom? ›

Bedroom: 1,000 to 2,000 lumens. Hallway: 500 to 1,000 lumens.

How many lumens is best for a small room? ›

Determine the needed lumens

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.

Will 300 lumens light up a room? ›

For typical home lighting, the lumens can range as follows: Low light: About 200-300 lumens, suitable for a cozy, dimly lit atmosphere. Moderate light: Around 400-800 lumens, good for regular tasks and dining areas. Bright light: 1000-1600 lumens, ideal for workspaces and kitchens.

Is 1500 lumens bright for a room? ›

A lumen has a brightness equal to one candle; therefore, a 1500-lumen LED bulb means the 1,500 candles were lit in a single room. The 1500 lumens are considered best for the halogen lights. These are the ideal choices for outdoor lights because they provide the best brightness with low energy consumption.

Can lights per square foot? ›

Whatever new recessed lighting you add should work with your existing fixtures. Measure your room to see how many fixtures you will need. A common rule of thumb is that you use one recessed light for every 4 to 6 square feet of ceiling space. Doing so provides even, overall illumination.

How many lumens per square foot commercial? ›

We can understand this with an example: an office ideally needs an average of 40 foot-candles or 40 lumens per square foot.

How many watts of light are needed per square foot? ›

In general, about 1.86 watts per square foot is recommended for ambient lighting with traditional bulbs. For a 150-square-foot dining room, you will need 279 watts for optimal lighting. By opting for LED bulbs, you can significantly reduce energy consumption, as they are much more efficient and energy-saving.

How many lumens per square foot bathroom? ›

Generally, we recommend around 50-75 lumens per square foot in a bathroom. For example, a small bathroom that is 5 feet by 8 feet (40 square feet) would require 2,000-3,000 lumens (50-75 lumens per square foot). Remember that the type of lighting fixtures and bulbs you use will also affect the amount of light output.

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.

How many lumens per square foot for a garage? ›

The recommended illumination for the general lighting in your garage is 50 lumens per square foot. For a standard single-car garage measuring 14 feet wide and 20 feet long, you'll need roughly 14,000 lumens for the 280 square feet of space.

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

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

How much area will 20,000 lumens cover? ›

For spaces that are between 15 and 20 feet, you may want to look for lighting solutions between 16,000 and 20,000 lumens. If you want to cover spaces that are 20 to 30 feet, then you will need a higher lumen output.

How many recessed lights do I need for a 10x10 room? ›

A: Our lighting experts recommend installing one recessed light for every 4-5 square feet in a room.

Top Articles
Latest Posts
Article information

Author: Kareem Mueller DO

Last Updated:

Views: 5780

Rating: 4.6 / 5 (66 voted)

Reviews: 81% of readers found this page helpful

Author information

Name: Kareem Mueller DO

Birthday: 1997-01-04

Address: Apt. 156 12935 Runolfsdottir Mission, Greenfort, MN 74384-6749

Phone: +16704982844747

Job: Corporate Administration Planner

Hobby: Mountain biking, Jewelry making, Stone skipping, Lacemaking, Knife making, Scrapbooking, Letterboxing

Introduction: My name is Kareem Mueller DO, I am a vivacious, super, thoughtful, excited, handsome, beautiful, combative person who loves writing and wants to share my knowledge and understanding with you.