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Wire Gauge Calculator

AWG Wire Specifications

Find Wire Size by Amps

Formula

Lower AWG number = thicker wire = more capacity

Frequently Asked Questions

What wire gauge do I need?
Common residential: 14 AWG for 15A circuits (lighting), 12 AWG for 20A (outlets), 10 AWG for 30A (dryer), 8 AWG for 40A (range), 6 AWG for 50A (large AC). Always follow local electrical codes.

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