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Wire & Cable Size Calculator

Enter the load, cable run length and allowed voltage drop to get a suggested conductor size.

Load current
8.7 A
Recommended size
1.5 mm²
Drop at that size
1.32%

This tool gives a quick estimate for planning purposes only — it doesn't account for every site condition (ambient temperature, conduit fill, local code). For a final specification or anything connected to your mains, have it checked by a licensed electrician — talk to us.