Awg Wire Gauge Calculator

In the metric gauge scale the gauge is 10 times the diameter in millimeters so a 50 gauge metric wire would be 5 mm in diameter.

Awg wire gauge calculator. This wire size calculator will calculate the appropriate wire gauge for a circuit based on amps voltage distance and load. 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. 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. 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 size is x2 for increases of 6 gage numbers a decrease of 3 awg numbers is x2 area increase. Dimensions of the wires are given in astm standard b 258. 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. 36 awg is 005 inches diameter 0000 or 4 0 or four aught is 46 inches diameter as a rule of thumb approximation.

Wire gauge calculations wire diameter calculations. Still another critical factor in voltage drop is wire length. 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. To determine the effective awg gage of multiple small wires a particular gage.

The combination is equivalent to a single 10 awg gage. 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. The cross sectional area of each gauge is an important factor for determining its. D n in 0 005 in 92 36 n 39.

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. 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. This website provides a wire size calculator voltage drop calculator wire ampacity charts and more. When calclating awg from diameter or cross sectional area the diameter and cross sectional area are rounded to the nearest awg equivalent values.

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. 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 inches in is equal to 0 005in times 92 raised to the power of 36 minus gauge number n divided by 39.