Ohms Law Calculator
Calculate voltage, current, resistance and power using V=IR.
Enter any two values to calculate the other two. V = I × R, P = V × I
Voltage
—
Volts
Current
—
Amperes
Resistance
—
Ohms
Power
—
Watts
Calculate voltage, current, resistance and power using V=IR.
Enter any two values to calculate the other two. V = I × R, P = V × I
Voltage
—
Volts
Current
—
Amperes
Resistance
—
Ohms
Power
—
Watts