Illuminance Converter

Illuminance: convert between lux and foot-candles using the exact foot-to-meter definition.

Value

Result

From unit

To unit

Works for any combination of the units above -- every value converts through the same verified base-unit math used on the individual pages.

How Illuminance Units Relate

Illuminance measures how much light falls on a surface, combining a light-quantity unit (the lumen) with an area unit. Because area scales as the square of length, the lux-to-foot-candle conversion factor is the square of the meter-to-foot length factor.

All Illuminance Converters

Each of these has its own page with the exact formula, a reference table, and answers to common questions.

By Cedrick Reese, Ready Utilities