Awg Wire Gauge Calculator

The calculator allows entry of a voltage drop but caution should be used when doing so to make sure you are calculating the wire sizes in accordance with nec article 210 19 fpn no.

Awg wire gauge calculator.

American wire gauge size calculator and chart. In american wire gauge every 6 gauge decrease gives a doubling of the wire diameter and every 3 gauge decrease doubles the wire cross sectional area. American wire gauge awg also known as the brown sharpe wire gauge 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. Wire gauge calculations wire diameter calculations.

The n gauge wire diameter d n in millimeters mm is equal to 0 127mm times 92 raised to the power of 36 minus gauge number n divided by 39. 4 the nec allows a maximum of a 3 voltage drop on the main branch of a circuit at the farthest outlet of power and 5 total to both feeders and branch. Still another critical factor in voltage drop is wire length. For example to see the effective gauge of a cable made from 10 20 gauge wires select 20 gauge from the drop list then type 10 into the number of wires field and press the tab key.

To determine the effective awg gage of multiple small wires a particular gage. The n gauge wire diameter d n in inches in is equal to 0 005in times 92 raised to the power of 36 minus gauge number n divided by 39. The combination is equivalent to a single 10 awg gage. This wire size calculator will calculate the appropriate wire gauge for a circuit based on amps voltage distance and load.

This website provides a wire size calculator voltage drop calculator wire ampacity charts and more. Wire size is x2 for increases of 6 gage numbers a decrease of 3 awg numbers is x2 area increase. The diameter and cross sectional area of a wire can be found using the wire gauge and a few simple formulas. When calclating awg from diameter or cross sectional area the diameter and cross sectional area are rounded to the nearest awg equivalent values.

It just calculates the voltage drop consult the above table for rules of thumb or your local or national electrical code or your electrician to decide what is legal. Dimensions of the wires are given in astm standard b 258. The cross sectional area of each gauge is an important factor for determining its. How to convert awg to mm.

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. The n gauge wire diameter d n in millimeters mm is equal to 0 127mm times 92 raised to the power of 36 minus gauge. Wire gauge is a standard unit for measuring the diameter of the wire and american wire gauge or awg is the standard used in north america.