AWG = -4.3125 LN (mm2) + 17.16 (approx interpolated) AWG = -4.3125 LN (inch2) - 10.74 (approx interpolated) Logical AWG numbers are based on continuing the series in a logarithmic relationship to the cross sectional area of the wire.

The following AWG “American Wire Gauge” table shows the AWG Size and diameter in millimeter “mm” and inches in “in”, its cross sectional area in mm 2, Inche 2 and kcmil or MCM and resistance in ohms per 1000 feet and 1000 meter. The AWG size chart also shows the current in amperes for chassis wiring and power transfer application.

American wire gauge size calculator and chart.

American Wire Gauge (AWG) is a logarithmic stepped standardized wire gauge system used since 1857, predominantly in North America, for the diameters of round, solid, nonferrous, electrically conducting wire. Dimensions of the wires are given in ASTM standard B 258. [1] .

The following calculator calculates the voltage drop, and voltage at the end of the wire for American Wire Gauge from 4/0 AWG to 30 AWG, aluminum or copper wire.

Diameter, Resistance and Maximum current listed for each AWG size.

The American Wire Gauge (AWG) measurement system was designed with a purpose: for every three steps in the gauge scale, wire area (and weight per unit length) approximately doubles. This is a handy rule to remember when making rough wire size estimations!

Maximum current (amps) in a 12V electrical circuit vs. size (AWG) and length of wire. Electrical resistance in plain copper or aluminum wires. The AWG (American Wire Gauge) wire size chart with detailed specifications on wire diameter, resistance, and ampacity.

Each wire size, or wire gauge (AWG), has a maximum current limit that a wire can handle before damage occurs. It is important to pick the correct size of wire so that the wire doesn't overheat. The number of devices connected to the circuit usually determines how much current will flow through the wire.

The following American Wire Gauge (AWG) calculator will calculate the diameter in mm, inches, cross sectional area in mm2, inches2 and kcmil or MCM, resistance per 1000 feet and per 1000 meters and the current rating in amperes for chassis wiring and power transmission applications.