๐ Household
Lighting Calculator
Lighting level is measured in foot-candles, or lumens per square foot. A hallway only needs about 5-10 foot-candles while a kitchen counter wants 70-80, so the same room can call for very different amounts of light.
How it works
Room length
Room width
Room type
Lumens per bulb
Room area
Lumens needed
Bulbs needed
Frequently asked questions
How do I use the Lighting Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.