Lux to Lumens Calculator
Convert illuminance (lux) and area back to required luminous flux (lumens).
Input Data
Input Illuminance E.
lx
Input Area A.
m²
Results
3,000lm
Φ = E × A = 300 lx × 10 m² = 3000.000000 lm
At a glance:Lux to Lumens Calculator: enter parameters to compute results; complements related calculators.
Formula
Φ = E × A
E: illuminance (lx), A: area (m²), Φ: luminous flux (lm)
How to Use
- Enter illuminance E (lux).
- Enter area A (m²).
- Get luminous flux Φ (lumens).
Case Studies
E = 100 lx, A = 10 m²
Φ = 100 × 10 = 1000 lm.
FAQ
Vs lumens-to-lux?
It is the inverse: Φ = E·A.
Utilance included?
Real designs multiply by utilance and maintenance factors; this is the ideal value.
Related Tools
References
Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.