Lumens to Lux Calculator
Determine the light intensity on a specific area based on the total lumens produced by your light source.
E_v(lx) = Φ_v(lm) / A(m²)
1000 lumens over 10 m² = 100 lux
How do I convert lumens to lux?
To convert lumens to lux, divide the total luminous flux (lumens) by the surface area over which it is spread (square meters). Formula: Lux = Lumens / Area.
What is the difference between lumens and lux?
Lumens measure the total amount of light emitted by a bulb. Lux measures the amount of light that actually hits a surface. One lux is equal to one lumen per square meter.
How does distance affect lux?
As you move further from a light source, the same amount of lumens is spread over a larger area, which decreases the lux (illuminance) according to the inverse square law.
🔗 Related Calculators
📐 Formula
E_v(lx) = Φ_v(lm) / A(m²)
📝 Example Calculation
1000 lumens over 10 m² = 100 lux
❓ Frequently Asked Questions
How do I convert lumens to lux?▼
To convert lumens to lux, divide the total luminous flux (lumens) by the surface area over which it is spread (square meters). Formula: Lux = Lumens / Area.
What is the difference between lumens and lux?▼
Lumens measure the total amount of light emitted by a bulb. Lux measures the amount of light that actually hits a surface. One lux is equal to one lumen per square meter.
How does distance affect lux?▼
As you move further from a light source, the same amount of lumens is spread over a larger area, which decreases the lux (illuminance) according to the inverse square law.