Inverse Square Falloff
Calculator

Inputs

Illuminance at distance
11.111111

Results

Illuminance at distance
11.111111

Media and photography results

Illuminance at distance11.111111

formula-map diagram

Illuminance at distance
11.111111

Media and photography relationship

Formula

E₂ = E₁ × (d₁ ÷ d₂)²

= 11.111111111111

Note

This result uses the values you entered and a simplified planning equation; verify quantities and local requirements before purchasing or building.

More in Media and photography

See all →