Voltage Drop Calculator – Electrical Wire Calculator

Calculate voltage drop in electrical circuits based on wire gauge, length, current, and voltage. Essential tool for electricians and electrical engineers.

Voltage Drop Calculator – Electrical Wire Calculator

Calculate voltage drop in electrical circuits based on wire gauge, length, current, and voltage. Essential tool for electricians and electrical engineers.

Current flowing through the wire

One-way distance of wire run

Wire gauge (AWG)

System voltage

Wire material type

💡
24.00
W (power)

Ohm's Law: V = I × R | P = V × I

Understanding Voltage Drop

Voltage drop occurs when electrical current flows through wire resistance, causing a reduction in voltage at the load. Excessive voltage drop can cause equipment malfunction and energy waste.

How to Use This Calculator

Follow these simple steps to get accurate results:

  1. Enter your current (amps)
  2. Enter your distance (feet)
  3. Enter your wire gauge (awg)
  4. Enter your system voltage
  5. Enter your wire material
  6. Click the "Calculate" button to see your results
  7. Review the detailed breakdown and explanation

Why Use Our Voltage Drop Calculator – Electrical Wire Calculator?

  • 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

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