Calculators

Lighting calculators

12 tools

Lumens, lux, candela, and lighting conversions.

Candela to Lumen Calculator Convert candela to lumens using beam angle.
Candela to Lux Calculator Convert candela to lux at a distance (inverse square law).
Foot-Candles to Lux Calculator Convert between foot-candles (fc) and lux.
Lumen to Candela Calculator Convert lumens to candela using beam angle (solid angle).
Lumen to Lux Calculator Convert lumens to lux using illuminated area in square meters or square feet.
Lumen to mcd Calculator Convert lumens to millicandela (mcd) and back using beam angle.
Lumen to Watt Calculator Convert lumens to watts using luminous efficacy (lm/W).
Lux to Candela Calculator Convert lux to candela at a distance.
Lux to Lumen Calculator Convert lux to lumens using area.
Lux to Watt Calculator Estimate watts from lux, area, and luminous efficacy.
Watt to Lumen Calculator Convert watts to lumens using luminous efficacy.
Watt to Lux Calculator Estimate lux from watts, area, and efficacy.