Cable Size Calculator

This calculator returns the minimum size for individual Direct Current (DC) cable runs.
The maximum load is entered, along with the system voltage and length of cable needed.
The result is the minimum cross-sectional area required to ensure a voltage drop of less than 5% of the system voltage.

Maximum Load
Watts

Cable Length
Metres

System Voltage
Volts

Minimum Cable Size
mm2

This is a guide only and The 12 Volt Shop accept no responsibility or liability in matters pertaining to the information dislayed here