Electrical & Electronics
Ohm's Law Calculator
Calculate voltage, current, resistance, and power using Ohm's Law. Enter any two values to find the others.
Calculate Voltage, Current & Resistance
Enter any two values to calculate the remaining two using Ohm's Law (V = I Ć R).
Ohm's Law Formulas
| V = I Ć R | I = V / R |
| R = V / I | P = V Ć I |
| P = IĀ² Ć R | P = VĀ² / R |
V = Voltage (Volts)
I = Current (Amps)
R = Resistance (Ohms)
P = Power (Watts)