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Calcimator

Ohm's Law Calculator

Calculate voltage, current, resistance, or power using Ohm's Law (V = I Γ— R). Enter any two values to find the others.

Inputs

V
A
Ξ©

Results

Voltage

12 V

Current2 A
Resistance6 Ξ©
Power24 W
How to Use This Calculator
  1. Select the unknown variable: voltage (V), current (I), or resistance (R).
  2. Enter the two known values in their respective units.
  3. Review the calculated result using Ohm's Law (V = IR).
  4. Also check calculated power (P = VI = I2R = V2/R) for the circuit.
  5. Use for basic circuit analysis, resistor selection, and power dissipation calculations.
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