KelvinPlanHow much light each room needs, and what color it should be.

How many lumens for a 14 × 24 ft bathroom?

Total light needed
11,760lumens
336 ft² × 35 foot-candles
bathroom · 14×24 ft14 ft24 ft11,760 lumens total · about 15 fixtures · 3000–4000K
Room area336ft²
Target light levelIES guidance for a bathroom35foot-candles
Total lumens11,760lm
Colour temperatureadd vanity lights at face height3000–4000K
Bulbs (800 lm each)15bulbs
Recessed cans (4 ft spacing)560 lm each21fixtures

Notes

  • Foot-candles are lumens per square foot at the work surface. Ceilings above 9 ft, dark walls or dark flooring all eat light — add roughly 10% per extra foot of ceiling height.
  • Spread the total across several fixtures rather than one bright source. One 11,760 lm fixture and 21 smaller ones add up the same but look completely different.

Where 11,760 lumens comes from

Lighting is specified in foot-candles — lumens landing on each square foot of the surface you care about. A bathroom is worked to 35 foot-candles. Across 336 ft² that is 11,760 lumens in total.

Split it up

One fixture putting out 11,760 lumens and 21 fixtures adding up to the same number light a room very differently. A single source throws hard shadows and glare; several spread the light and make the room feel larger. Aim for layers — ambient, task, and something low for the evening.

Color temperature

3000–4000K suits this room. Warmer light reads as relaxed and is what you want where people wind down; cooler light keeps edges and colors crisp, which matters where there is work to do.

Nearby sizes

Read more