Voltage Drop Calculator

This calculator uses the accurate voltage drop method described by the Standard AS/NZS 3008.1.1.

Accurate voltage drop calculations will often result in smaller cable sizes. Note that cable operating temperature is not being considered in this calculator – use our Cable Pro Web software to consider this and for the most accuracy.

The Wiring Rules AS/NZS 3000 sets the limits for voltage drop within an installation.

Please enter the parameters below and press Calculate.

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Cable Size Calculator

This calculator determines minimum cable size using the method described by the Standard AS/NZS 3008.1.1 and uses the accurate voltage drop method.

Earth Cable Size Calculator

Earth cable size can be determined using Table 5.1 in AS/NZS 3000 or by calculation.

Cable Pro Web

Cable sizing and maximum demand software in the cloud. No installation, use on any device.

Cable Pro Web

Cable sizing and maximum demand software in the cloud.

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