Voltage Drop Calculator

Voltage Drop Diagram
Voltage Drop Source Load Wire Length: 100 m Current: 10 A Resistance: 0.0172 Ω/km Voltage Drop: 0.344 V Calculation in Progress

Voltage Drop Calculator

What is a Voltage Drop Calculator?

A Voltage Drop Calculator is a tool that helps determine the decrease in voltage along an electrical circuit due to the resistance of the wire. It's crucial for ensuring that electrical systems operate efficiently and safely.

The Formula

The formula for calculating voltage drop is:

\[Voltage Drop = 2 \times Wire Length \times Current \times \frac{Wire Resistance}{1000}\]

Where:

  • Voltage Drop is in volts (V)
  • Wire Length is in meters (m)
  • Current is in amperes (A)
  • Wire Resistance is in ohms per kilometer (Ω/km)

Importance of Voltage Drop Calculation

Calculating voltage drop is important for several reasons:

  • Ensures proper operation of electrical equipment
  • Helps in selecting appropriate wire sizes
  • Prevents overheating and energy loss in electrical systems
  • Assists in complying with electrical codes and standards

By using this calculator, you can quickly determine if the voltage drop in your electrical circuit is within acceptable limits, typically 3-5% for most applications.