-
Step 1
Determine the number of foot-candles for the conversion into watts. For this example, the number of foot-candles is 50.
-
Step 2
Convert foot-candles into lumens. One foot-candle equals to 10.76 lumens. In this example, 50 foot-candles multiplied by 10.76 equals 538 lumens, or lux (50 x 10.76 = 538).
-
Step 3
Convert the lumens into watts. One lumen equals 0.001496 watts of energy per square meter. In this example, 538 lumens multiplied by 0.001496 equals 0.804808 watts.
-
Step 4
Use this formula for your own calculations: Number of foot-candles x 10.76 x 0.001496 to convert foot-candles into watts.













