Lighting

Lux to Lumens Calculation — ChiefEngineer.in

Worked step-by-step example. Convert illuminance over an area to luminous flux. Open interactive calculator →

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Result

Lumens
5000 lm

Formula

Φv = E × A

Variables

  • E — illuminance (lx)
  • A — area (m²)
  • Φv — flux (lm)

Worked Example

Input: 500 lx over 10 m²

Result: Φ = 5000 lm

Assumptions & Notes

Assumes uniform illuminance across the area.

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