Ohm's Law Calculator

Enter any two known values and press "Calculate" to solve for the others.

Voltage (E) = Current (I) * Resistance (R)
Power (watts) = Voltage (E) * Current (I)

Voltage (E): Volts (V)
Current (I):
Resistance (R):
Power (P): Watts (W)

This page was based on scripts originally written by Bill Bowden