Power Calculator
Please enter any two values, the third value will be calculated.
Voltage V = R x I (1)
Voltage V = P ÷ I (2)
Power P = V x I (3)
Current I = P ÷ V (4)
Power P = V 2 ÷ R (5)
Example: a heater resistance is 65Ω, power supply is 220V, find the power
(2202) ÷ 65 = 744W