Light converter tools

Photometric unit conversions for lighting, displays, and photography.

Lux to Foot-Candles Converter — Illuminance

Convert illuminance between lux, foot-candles, and phots instantly — 1 fc = 10.764 lx exactly. Free lighting unit converter in your browser.

Luminance Converter — cd/m² (Nits) & Foot-Lamberts

Convert luminance between cd/m² (nits), foot-lamberts, stilbs, and lamberts instantly with exact NIST factors. Free converter in your browser.

Luminous Energy Converter — Lumen-Seconds & Talbots

Convert luminous energy between lumen-seconds, talbots, lumen-minutes, and lumen-hours instantly. Free photometry unit converter in your browser.

Luminous Flux Converter — Lumens

Convert luminous flux between lumens, kilolumens, millilumens, and candela-steradians instantly. Free photometry unit converter in your browser.

Luminous Intensity Converter — Candela & Candlepower

Convert luminous intensity between candela, millicandela, and candlepower instantly — LED mcd ratings included. Free converter in your browser.