Ohm’s Law Calculator
Use SEMNIC’s Ohm’s Law calculator to calculate the relationships between current, voltage, resistance, and power in simple resistive circuits.
Enter at least any two input values and click calculate to solve for the remaining values. Reset the calculator after each calculation for best results.
Voltage (V)
V
Current (I)
A
Resistance (R)
Ω
Power (P)
W
×