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):
amps (A)
milliamps (mA)
Resistance (R):
ohms (Ω)
kilohms (kΩ)
megaohms (mΩ)
Power (P):
Watts (W)
This page was based on scripts originally written by
Bill Bowden
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