Cable Cross-Section Calculator

Determine the minimum cable cross-section for your electrical installation.

Input

Current Load Amperes (A)

Cable Length (one way) Meters (m)

Supply Voltage Volts (V)

Max Voltage Drop

Conductor Material

Phase

Result

Minimum Cross-Section 2.5 mm²

Recommended Size 4 mm²

AWG Equivalent AWG 12

Actual Voltage Drop 2.8%

Voltage at Load 223.6 V

Power Loss in Cable 13.4 W

Cable Sizing Standards

This calculator uses IEC 60364 principles. The minimum cross-section is determined by both current-carrying capacity and voltage drop. Always verify with local electrical codes and a qualified electrician.