Lux to Lumens Calculator
Determine total luminous flux by multiplying illuminance in lux by the lit area in square meters.
CalcSimpler Examples
- 500 lux over 20 m² ⇒ 10,000 lumens
- 300 lux over 10 m² ⇒ 3,000 lumens
FAQ
What is lux?
Lux measures illuminance or light per unit area.
Why multiply by area?
Lumens quantify total light output; lux is lumens per square meter.
Does surface color matter?
This calculation assumes uniform reflection and ignores color.
Can I use feet²?
Convert feet² to m² before using this calculator.
Additional Information
- 1 lumen equals 1 candela·steradian.
- Typical office lighting ranges from 300–500 lux.
CalcSimpler