The American Wire Gauge (AWG) Diameter function returns the diameter of wire based on the gauge.
INSTRUCTIONS: Enter the following:
Wire Diameters (D): The calculator returns the diameter in mils (1/1000th of an inch) and in millimeters.
The Math / Science
This utility computes the wire gauge from the input gauge number, which has one of the following gauge designations: 00 (2/0), 000 (3/0), 0000 (4/0). See Diameter of AWG < 00 for smaller gauges.
The wire diameter formula for gauges from 0 to 40 is:
`x = (32-WG)/39`
`D = 0.005 * 92^x`
where:
The wire diameter formula for gauges 0000000 (7/0), 000000 (6/0), 00000 (5/0), 0000 (4/0), 000 (3/0), and 00 (2/0) is:
`x = -1.12436 - (0.11594*n)`
`D = e^x`
where:
The American Wire Gauge (AWG) is a standard for diameters of round solid, nonferrous electrically conducting wires and the standard is used predominantly in North America. Larger gauge numbers correspond to decreasing wire diameters. The gauges define the total cross sectional area which then correlates to the wire's electrical resistance and current carrying capacity. The AWG standard has two fixed gauge points in the scale: No. 36 AWG is defined to be exactly 0.005 inches in diameter and No. 0000 is defined to be 0.46 inches in diameter.
Two formula define the diameters at all ranges of AWG numbers. The first range is for wire diameters larger than gauge 0. The second range is for gauges from 0 through 36.