4 AWG Wire Diameter and Area

4 AWG wire has a diameter of approximately 5.189 mm (0.2043 inches).

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4 AWG wire is used for high-current applications like car audio systems and main service entrance wiring.

Frequently asked questions

What is AWG 14 wire diameter?: AWG 14 wire has a diameter of approximately 1.628 mm and a cross-sectional area of 2.08 mm². It is commonly used for 15-amp household circuits.