Ohm's Law Calculator and Converters

This page provides an Ohm’s Law calculator as part of a suite of converters and calculators. This particular tool helps you calculate one value based on two known inputs, all based on Ohm’s Law (V = I x R). The three primary parameters involved are current (I), voltage (V), and resistance (R).

Ohm’s Law Calculations

V and I Given, Calculate R

EXAMPLE Ohm’s Law Calculator-1:

• INPUTS:
  • Voltage = 12
  • Current = 5 Amp
• OUTPUTS:
  • Resistance = 2.4 Ω
  • Power = 60 Watts

I and R Given, Calculate V

EXAMPLE Ohm’s Law Calculator-2:

• INPUTS:
  • Current = 5 Amp
  • Resistance = 2.4 Ω
• OUTPUTS:
  • Voltage = 12
  • Power = 60 Watts’

V and R Given, Calculate I

EXAMPLE Ohm’s Law Calculator-3:

• INPUTS:
  • Voltage = 12
  • Resistance = 2.4 Ω
• OUTPUTS:
  • Current = 5 Amp
  • Power = 60 Watts

Ohm’s Law Calculator Equations

The following equations or formulas are used in the Ohm’s Law Calculator.