Voltage Drop Calculator
Calculate voltage drop in a wire based on current, distance, and wire size.
Results
Voltage Drop:
Percentage Drop:
Voltage at End:
What is this Online Voltage Drop Calculator for?
The Voltage Drop Calculator estimates the loss of voltage in a circuit due to wire resistance.
How does it work?
It uses the formula Vd = (2 * L * R * I) / 1000, where L is length, R is resistance per 1000ft, and I is current.