Input Parameters
About This Calculator
- Lumens = Area (m²) × Lux
- LED efficiency ≈ 100-150 lm/W
- Standard fixture ≈ 800 lumens
How this lumen calculator works
Total lumens needed = Area (m²) × Recommended lux. Different room types require different light levels per IES standards.
LED wattage estimate uses 120 lumens per watt (modern LED efficiency). Fixture count assumes standard 800lm per fixture.
FAQ
Lumens per square meter?
Office: 500, Living: 150, Kitchen: 300, Bedroom: 200 lux.
Lux to lumens?
Lumens = Area × Lux. 20m² office = 10,000 lumens.
LED watts per lumen?
Modern LEDs: ~100-150 lumens per watt.