online voltage drop calculator

Instant Voltage Drop Calculator — 1-Phase & 3-Phase, Cu/Al, AWG/kcmil (Volts & %)

Quickly estimate line losses and ensure your circuits run efficiently with our instant voltage drop calculator for 1‑phase and 3‑phase systems, Cu/Al conductors, and AWG/kcmil sizing (Volts & %). Save time and avoid costly mistakes with clear results in volts and percent.

Voltage Drop Calculator Must-Have Affordable Tool

This must-have, affordable voltage drop calculator helps you quickly pick the right wire size and avoid costly mistakes. Friendly enough for DIYers and powerful enough for pros, it saves time and gives confidence on every electrical job.