Ohm's Law Calculator

Compute voltage from current and resistance.

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Save to create a persistent, shareable workspace.

What This Calculator Does

Compute voltage from current and resistance.

It combines Current, Resistance to estimate Voltage, Power.

Formula & Method

Core equations:

V=IR

(and

I=V/R, R=V/I

Notation used in the formulas: $R$ = Voltage; $x_{1}$ = Current; $x_{2}$ = Resistance.

Method summary: inputs are normalized to consistent units, core equations are evaluated, then secondary values are derived and rounded for display.

Use this calculator for quick scenario analysis. Start with baseline values, change one driver at a time, and compare how sensitive the results are to each input shown above.

Reference Book

University Physics with Modern Physics

Hugh D. Young and Roger A. Freedman · Pearson

A common undergraduate physics text covering mechanics, electricity, waves, energy, and introductory modern physics.

View Book

Inputs Used

Current: Used directly in the calculation.
Resistance: Used directly in the calculation.

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