Awg Wire Gauge Calculator

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.

Awg wire gauge calculator.

36 awg is 005 inches diameter 0000 or 4 0 or four aught is 46 inches diameter as a rule of thumb approximation. When calclating awg from diameter or cross sectional area the diameter and cross sectional area are rounded to the nearest awg equivalent values. 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. 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.

This website provides a wire size calculator voltage drop calculator wire ampacity charts and more. 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. 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. The combination is equivalent to a single 10 awg gage.

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. 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. The diameter and cross sectional area of a wire can be found using the wire gauge and a few simple formulas. 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.

Still another critical factor in voltage drop is wire length. How to convert awg to mm. 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. Wire gauge calculations wire diameter calculations.

Dimensions of the wires are given in astm standard b 258. 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. 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. This wire size calculator will calculate the appropriate wire gauge for a circuit based on amps voltage distance and load.

To determine the effective awg gage of multiple small wires a particular gage. The cross sectional area of each gauge is an important factor for determining its. 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.