Ohm's Law Calculator – Voltage, Current, Resistance, Power

Calculate voltage, current, resistance, and power using Ohm's Law. Essential tool for electrical engineers, students, and electronics enthusiasts.

Ohm's Law Calculator – Voltage, Current, Resistance, Power

Calculate voltage, current, resistance, and power using Ohm's Law. Essential tool for electrical engineers, students, and electronics enthusiasts.

What to calculate

Voltage in volts

Current in amperes

Resistance in ohms

Power in watts

šŸ’”
24.00
W (power)

Ohm's Law: V = I Ɨ R | P = V Ɨ I

Understanding Ohm's Law

Ohm's Law describes the relationship between voltage, current, and resistance in electrical circuits. It's fundamental to understanding and designing electrical systems.

How to Use This Calculator

Follow these simple steps to get accurate results:

  1. Enter your calculate
  2. Enter your voltage (v)
  3. Enter your current (a)
  4. Enter your resistance (ω)
  5. Enter your power (w)
  6. Click the "Calculate" button to see your results
  7. Review the detailed breakdown and explanation

Why Use Our Ohm's Law Calculator – Voltage, Current, Resistance, Power?

  • 100% free and no registration required
  • Instant, accurate calculations with professional formulas
  • Mobile-friendly design that works on any device
  • Privacy-focused - your data never leaves your browser
  • Educational content to help you understand the results

Frequently Asked Questions