The Voltage Drop Calc

Voltage Drop Calculator

A simple, practical voltage drop calculator for electricians and engineers.

Quickly calculate voltage drop, cable size, and load voltage for single-phase and three-phase systems. Designed to be easy to use on site, with advanced tools available for professionals.

Free Features • Basic voltage drop calculation • Single-phase and three-phase systems • Copper or aluminium conductors • Adjustable cable length and load current • Power factor support • Clear voltage drop and percentage results

Pro Features

• UK BS 7671 (18th Edition) voltage drop calculations • mV/A/m tables for common cable types • Cable size finder to meet % voltage drop limits • Advanced calculation options • Ad-free experience

Built for Electricians

Whether you’re checking a quick voltage drop or designing a circuit to standards, this app keeps calculations fast, clear, and reliable.

Notes

Voltage drop results are intended as guidance. Always verify final designs against current wiring regulations and manufacturer data.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/