Ohm's Law Calculator
Calculate voltage (V), current (I), resistance (R), and power (P). Enter any two values.
Enter any 2 values to calculate the rest:
V = I × R | I = V / R | R = V / I | P = V × I
Calculate voltage (V), current (I), resistance (R), and power (P). Enter any two values.
Enter any 2 values to calculate the rest:
V = I × R | I = V / R | R = V / I | P = V × I