Online American wire gauge (AWG) size calculator
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Wire Gauge Size Chart
American wire gauge (AWG) size calculator and chart.
Wire gauge calculator
* @ 68°F or 20°C
** Results might change with genuine wires: different resistivity of material and number of strands in wire
AWG chart
AWG # | Diameter (inch) |
Diameter (mm) |
Area (kcmil) |
Area (mm2) |
---|---|---|---|---|
0000 (4/0) | 0.4600 | 11.6840 | 211.6000 | 107.2193 |
000 (3/0) | 0.4096 | 10.4049 | 167.8064 | 85.0288 |
00 (2/0) | 0.3648 | 9.2658 | 133.0765 | 67.4309 |
0 (1/0) | 0.3249 | 8.2515 | 105.5345 | 53.4751 |
1 | 0.2893 | 7.3481 | 83.6927 | 42.4077 |
2 | 0.2576 | 6.5437 | 66.3713 | 33.6308 |
3 | 0.2294 | 5.8273 | 52.6348 | 26.6705 |
4 | 0.2043 | 5.1894 | 41.7413 | 21.1506 |
5 | 0.1819 | 4.6213 | 33.1024 | 16.7732 |
6 | 0.1620 | 4.1154 | 26.2514 | 13.3018 |
7 | 0.1443 | 3.6649 | 20.8183 | 10.5488 |
8 | 0.1285 | 3.2636 | 16.5097 | 8.3656 |
9 | 0.1144 | 2.9064 | 13.0927 | 6.6342 |
10 | 0.1019 | 2.5882 | 10.3830 | 5.2612 |
11 | 0.0907 | 2.3048 | 8.2341 | 4.1723 |
12 | 0.0808 | 2.0525 | 6.5299 | 3.3088 |
13 | 0.0720 | 1.8278 | 5.1785 | 2.6240 |
14 | 0.0641 | 1.6277 | 4.1067 | 2.0809 |
15 | 0.0571 | 1.4495 | 3.2568 | 1.6502 |
16 | 0.0508 | 1.2908 | 2.5827 | 1.3087 |
17 | 0.0453 | 1.1495 | 2.0482 | 1.0378 |
18 | 0.0403 | 1.0237 | 1.6243 | 0.8230 |
19 | 0.0359 | 0.9116 | 1.2881 | 0.6527 |
20 | 0.0320 | 0.8118 | 1.0215 | 0.5176 |
21 | 0.0285 | 0.7229 | 0.8101 | 0.4105 |
22 | 0.0253 | 0.6438 | 0.6424 | 0.3255 |
23 | 0.0226 | 0.5733 | 0.5095 | 0.2582 |
24 | 0.0201 | 0.5106 | 0.4040 | 0.2047 |
25 | 0.0179 | 0.4547 | 0.3204 | 0.1624 |
26 | 0.0159 | 0.4049 | 0.2541 | 0.1288 |
27 | 0.0142 | 0.3606 | 0.2015 | 0.1021 |
28 | 0.0126 | 0.3211 | 0.1598 | 0.0810 |
29 | 0.0113 | 0.2859 | 0.1267 | 0.0642 |
30 | 0.0100 | 0.2546 | 0.1005 | 0.0509 |
31 | 0.0089 | 0.2268 | 0.0797 | 0.0404 |
32 | 0.0080 | 0.2019 | 0.0632 | 0.0320 |
33 | 0.0071 | 0.1798 | 0.0501 | 0.0254 |
34 | 0.0063 | 0.1601 | 0.0398 | 0.0201 |
35 | 0.0056 | 0.1426 | 0.0315 | 0.0160 |
36 | 0.0050 | 0.1270 | 0.0250 | 0.0127 |
37 | 0.0045 | 0.1131 | 0.0198 | 0.0100 |
38 | 0.0040 | 0.1007 | 0.0157 | 0.0080 |
39 | 0.0035 | 0.0897 | 0.0125 | 0.0063 |
40 | 0.0031 | 0.0799 | 0.0099 | 0.0050 |
Wire gauge calculations
Wire distance across calculations
The n measure wire distance across dn in inches (in) is equivalent to 0.005in times 92 raised to the force of 36 less check number n, partitioned by 39:
dn (in) = 0.005 in × 92(36-n)/39
The n measure wire width dn in millimeters (mm) is equivalent to 0.127mm times 92 raised to the force of 36 short check number n, separated by 39:
dn (mm) = 0.127 mm × 92(36-n)/39
Wire cross sectional region calculations
The n measure wire's cross sercional region An in kilo-round mils (kcmil) is equivalent to multiple times the square wire measurement d in inches (in):
An (kcmil) = 1000×dn2 = 0.025 in2 × 92(36-n)/19.5
The n measure wire's cross sercional region An in square inches (in2) is equivalent to pi separated by multiple times the square wire breadth d in inches (in):
An (in2) = (π/4)×dn2 = 0.000019635 in2 × 92(36-n)/19.5
The n measure wire's cross sercional region An in square millimeters (mm2) is equivalent to pi separated by multiple times the square wire measurement d in millimeters (mm):
An (mm2) = (π/4)×dn2 = 0.012668 mm2 × 92(36-n)/19.5
Wire opposition calculations
The n check wire opposition R in ohms per kilofeet (Ω/kft) is equivalent to 0.3048×1000000000 times the wire's resistivity ρ in ohm-meters (Ω·m) partitioned by 25.42 times the cross sectional region An in square inches (in2):
Rn (Ω/kft) = 0.3048 × 109 × ρ(Ω·m)/(25.42 × An (in2))
The n measure wire obstruction R in ohms per kilometer (Ω/km) is equivalent to multiple times the wire's resistivity ρ in ohm-meters (Ω·m) partitioned by the cross sectional region An in square millimeters (mm2):
Rn (Ω/km) = 109 × ρ(Ω·m)/An (mm2)
Wire check is a standard unit for estimating the width of the wire and American wire measure, or AWG, is the standard utilized in North America. The width and cross-sectional region of a wire can be found utilizing the wire check and a couple of straightforward formulas.
Wire Diameter
The equation to track down the breadth of the wire in inches is:
breadth (in) = .005 × 92(36 - AWG) ÷ 39
The equation to find the distance across of the wire in millimeters is:
distance across (mm) = .127 × 92(36 - AWG) ÷ 39
Moves toward Track down the Diameter
First - track down the type in the situation by deducting the wire measure from 36 then separating by 39.
Tracking down the type for 00, 000, and 0000 measure wire is somewhat unique. Substitute - 1, - 2, and - 3 for the check in the equation above rather than the AWG value.
Second - see as 92 to the power determined in the past step.
Third - duplicate the worth from the second step by all things considered .005 inches or .127 mm to track down the distance across of the wire in inches or millimeters respectively.
Wire Cross-Sectional Area
The equation to track down the cross-sectional region of the wire in kilo-roundabout mils, or kcmil, is:
region (kcmil) = 1000 × diameter2
The equation to find the cross-sectional region of the wire in square millimeters is:
region (mm2) = (π ÷ 4) × diameter2
Moves toward Track down the Cross-Sectional Area
First - track down the distance across of the wire. Utilize the recipe above to compute the width assuming the AWG is known.
Second - duplicate the breadth by 1000 to track down the area in kcmil or by (3.1415 ÷ 4) to compute square millimeters.