There is a guide to wire gauge sizes and a chart of the AWG sizes.

The results may change with real wires.

The power of 36 minus gauge number n is equal to the diameter of the n gauge wire.

1000 times the square wire diameter is equal to the n gauge wire's cross sercional area.

The n gauge wire's cross sercional area is equal to pi divided by 4 times the diameter of the wire.

The n gauge wire's cross sercional area is equal to pi divided by 4 times the square wire diameter.

The cross sectional area is divided by 25.42 times the wire's resistance in the n gauge.