WIRE SIZE TABLE
This table provides closest equivalent size cross references between American and metric wire sizes.
American Wire Gauge
American Wire Gauge (AWG) is a standardized wire gauge system used in North America to identify the diameter of round, electrically conducting wire. Increasing gauge numbers result in decreasing wire diameters.
The AWG of a stranded wire is determined by the total cross sectional area of the conductor. Because there are small gaps between the strands, stranded wire will always have a slightly larger overall diameter than a solid wire of the same AWG.
Metric Wire Size
Metric wire size is also standardized. Metric wire size is determined by the number of strands of wires expressed in millimeters (mm) and the total cross sectional area of the conductor, expressed as square millimeters (mm²).
Example: 41/1.63 means forty–one strands of wire, each with a 1.63 mm diameter. This example has a cross sectional area of 2.08 mm².
| AWG | Number of Wire Strands⑴ | Conductor Wire Strand Diameter⑵ (In.) |
Conductor Wire Strand Diameter⑵ (mm.) |
Conductor Cross Section⑶ (mm²) |
|---|---|---|---|---|
| 6/0 | 3335 | 0.58 | 14.73 | 170.3 |
| 5/0 | 2646 | 0.517 | 13.12 | 135.1 |
| 4/0 | 2109 | 0.46 | 11.7 | 107 |
| 3/0 | 1665 | 0.41 | 10.4 | 85 |
| 2/0 | 1330 | 0.365 | 9.26 | 67.4 |
| 1/0 | 1064 | 0.325 | 8.25 | 53.5 |
| 1 | 836 | 0.289 | 7.35 | 42.4 |
| 2 | 664 | 0.258 | 6.54 | 33.6 |
| 3 | 523 | 0.229 | 5.83 | 26.7 |
| 4 | 420 | 0.204 | 5.19 | 21.1 |
| 5 | 329 | 0.182 | 4.62 | 16.8 |
| 6 | 266 | 0.162 | 4.11 | 13.3 |
| 7 | 206 | 0.144 | 3.66 | 10.5 |
| 8 | 168 | 0.128 | 3.26 | 8.36 |
| 9 | 130 | 0.114 | 2.91 | 6.63 |
| 10 | 105 | 0.102 | 2.59 | 5.26 |
| 11 | 82 | 0.0907 | 2.3 | 4.17 |
| 12 | 65 | 0.0808 | 2.05 | 3.31 |
| 14 | 41 | 0.0641 | 1.63 | 2.08 |
| 15 | 32 | 0.0571 | 1.45 | 1.65 |
| 16 | 26 | 0.0508 | 1.29 | 1.31 |
| 17 | 21 | 0.0453 | 1.15 | 1.04 |
| 18 | 16 | 0.0403 | 1.02 | 0.823 |
| 19 | 13 | 0.0359 | 0.912 | 0.653 |
| 20 | 10 | 0.032 | 0.812 | 0.518 |
| 21 | 8 | 0.0285 | 0.723 | 0.41 |
| 22 | 6 | 0.0253 | 0.644 | 0.326 |
| 23 | 5 | 0.0226 | 0.573 | 0.258 |
| 24 | 4 | 0.0201 | 0.511 | 0.205 |
| 25 | 3 | 0.0179 | 0.455 | 0.162 |
| 27 | 2 | 0.0142 | 0.361 | 0.102 |
| 30 | 1 | 0.01 | 0.255 | 0.0509 |
Notes:
(1) 30 AWG (0.255 mm) conductor diameter
(2) Single wire strand diameter
(3) Total area cross section of all wire strands
