← Back to Tools

Resistor Calculator

Calculate resistance and power using Ohm's Law

Inputs

Voltage (V)

Current (I)

Results

Resistance (R)

0Ohms (Ω)

Power (P)

0Watts (W)

Formulas

Resistance

R = \frac{V}{I}

Power

P = V \cdot I

Where,

V=Voltage (Volts (V))

I=Current (Amperes (A))

R=Resistance (Ohms (Ω))

P=Power (Watts (W))