Utilize this web-based utility to compute the necessary cable dimensions using the provided input parameters.
This online electrical calculator assists in identifying the appropriate gauge or size of copper or aluminum wires necessary for an electrical circuit.
Cable Size formula
Single Phase
Wire Circular Mils = 2 x Specific Resistance x Amperes x Distance / (Voltage Drop / Source Voltage)
Three Phase
Wire Circular Mils = 2 x 0.866 x Specific Resistance x Amperes x Distance / (Voltage Drop / Source Voltage)
where:
- Specific Resistance = 11.2 for Copper Cable,
- Specific Resistance = 17.4 for Aluminium Cable
