Electrical Engineering
Ohm's Law Calculator
Calculate voltage (V), current (I), resistance (R), and power (P) using Ohm's law. Enter any two known values to solve for all four.
Input (any 2)
Results
Voltage
12.0000 V
Current
0.0000 A
Resistance
0.0000 Ω
Power
0.0000 W
V = I × R. P = V × I = I² × R = V²/R. Enter any two known values; the calculator solves for all four. Leave unknown fields blank.
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