Lumen Estimation Calculator - How Many Lumens Do I Need?

Lumen Estimation Calculator

Determine how many lumens you need to adequately illuminate your space. This calculator provides estimates based on room dimensions, brightness needs, and wall reflectance.

What are the dimensions of the space?

Estimate the total square footage of the space by inputting the length and width. If the space is non-rectangular, estimate the equivalent rectangular dimensions.

600 square feet, 8 foot ceilings

What are your brightness needs?

Brightness needs will depend on the activity or work being performed in the space, as well as personal preference. Input your brightness needs, in footcandles:

100 fc: Fine manufacturing & industrial
80 fc: Artwork (creation)
60 fc: Bathrooms & Makeup
50 fc: Kitchen prep areas
40 fc: Office Spaces, Classrooms, Retail, Dining Areas
30 fc: Simple manufacturing & industrial
20 fc: Living Rooms, Artwork (illumination), Warehouse / Storage
10 fc: Bedrooms, Residential hallways

20 footcandles

What color are your walls?

The reflectance of your walls will also play a role in the total amount of lighting needed. Spaces with walls of lighter colors will require less light.

Reflectance: 94%

Your total recommended lumen output requirement is...

12,376 lumens

Your lumen target can be reached with the following...

Product Brightness (each) Quantity Needed Expected Total Lumen Output
A19 Bulb 800 lm 16 bulbs 12,800 lm
A19 Filament Bulb 450 lm 28 bulbs 12,600 lm
BR30 Flood Light 800 lm 16 bulbs 12,800 lm
T8 LED Tube 1800 lm 7 lamps 12,600 lm
COB LED STRIP LIGHT 450 lm (per ft) 28 ft 12,600 lm

Your recommended color temperature range is...

3012K
3840K

This calculator provides estimates only. Actual lighting needs may vary based on specific conditions and personal preferences.

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