Room Lighting Lumens
Determine the total lumens needed for a room by multiplying its area by the desired lumens per square foot.
Lighting recommendations vary; adjust for your needs.
Examples
- 100 sq ft at 20 lumens/sq ft ⇒ 2000 lumens
- 150 sq ft at 30 lumens/sq ft ⇒ 4500 lumens
FAQ
What is a typical brightness?
Living rooms often use 10–20 lumens per square foot.
Does bulb efficiency matter?
The calculator gives total lumens; choose bulbs accordingly.
Additional Information
- Result unit: lumens
Reference the candela definition for compliance
When turning these lumen estimates into specifications, cite the candela deep dive, cross-check flux guidance with the lumen article, and confirm target illuminance with the lux explainer to show how your lighting plan aligns with ISO 80000-7 terminology and SI traceability.