Engineering Tables/American Wire Gauge

The table below shows various data including both the resistance of the various wire gauges and the allowable current (ampacity) based on plastic insulation. The diameter information in the table applies to solid wires. Stranded wires are calculated by calculating the equivalent cross sectional copper area. Fusing Current (melting wire) is estimated based on 25 °C. The table below assumes DC, or AC frequencies equal to or less than 60 Hz, and does not take skin effect into account. Turns of wire is on a best-case scenario when winding tightly packed coils with no insulation. {| class="wikitable" style="font-size:97%; text-align:center;" |- !rowspan=2| AWG !!colspan="2"|Diameter !!colspan="2"|Turns of wire !!colspan="2"|Area !!colspan=2|Copperresistance !!rowspan=2 |NEC copper wireampacity with 60/75/90 °C insulation (A)!!rowspan=2| Approximatestranded metricequivalents!!colspan=3|Fusing Current(copper) |- ! (inch)!!(mm)!! (per inch) !! (per cm) !! (kcmil)!!(mm2)!!(Ω/km) !! (Ω/kFT) !! Preese(~10s) !! Onderdonk(1s) || Onderdonk(32ms) |- |0000 (4/0) || 0.4600 || 11.684 || 2.17 || 0.856 || 212 || 107 || 0.1608 || 0.04901|| 195 / 230 / 260 || || || 31KA || 173KA |- | 000 (3/0) || 0.4096 || 10.404 || 2.44 || 0.961 || 168 || 85.0 || 0.2028 || 0.06180|| 165 / 200 / 225 || || || 24.5KA || 137KA |- | 00 (2/0) || 0.3648 || 9.266 || 2.74 || 1.08 || 133 || 67.4 || 0.2557 || 0.07793|| 145 / 175 / 195 || || || 19.5KA || 109KA |- | 0 (1/0) || 0.3249 || 8.252 || 3.08 || 1.21 || 106 || 53.5 || 0.3224 || 0.09827|| 125 / 150 / 170 || || 1.9KA || 15.5KA || 87KA |- | 1 || 0.2893 || 7.348 || 3.46 || 1.36 || 83.7 || 42.4 || 0.4066|| 0.1239 || 110 / 130 / 150 || || 1.6KA || 12KA || 68KA |- | 2 || 0.2576 || 6.544 || 3.88 || 1.53 || 66.4 || 33.6 || 0.5127|| 0.1563 || 95 / 115 / 130 || || 1.3KA || 9.7KA || 54KA |- | 3 || 0.2294 || 5.827 || 4.36 || 1.72 || 52.6 || 26.7 || 0.6465|| 0.1970 || 85 / 100 / 110 || 196/0.4 || 1.1KA || 7.7KA || 43KA |- | 4 || 0.2043 || 5.189 || 4.89 || 1.93 || 41.7 || 21.2 || 0.8152|| 0.2485 || 70 / 85 / 95 || || 946A || 6.1KA || 34KA |- | 5 || 0.1819 || 4.621 || 5.50 || 2.16 || 33.1 || 16.8 || 1.028 || 0.3133 || || 126/0.4 || 795A || 4.8KA || 27KA |- | 6 || 0.1620 || 4.115 || 6.17 || 2.43 || 26.3 || 13.3 || 1.296 || 0.3951 || 55 / 65 / 75 || || 668A || 3.8KA || 21KA |- | 7 || 0.1443 || 3.665 || 6.93 || 2.73 || 20.8 || 10.5 || 1.634 || 0.4982 || || 80/0.4 || 561A || 3KA || 17KA |- | 8 || 0.1285 || 3.264 || 7.78 || 3.06 || 16.5 || 8.37 || 2.061 || 0.6282 || 40 / 50 / 55 || || 472A || 2.4KA || 13.5KA |- | 9 || 0.1144 || 2.906 || 8.74 || 3.44 || 13.1 || 6.63 || 2.599 || 0.7921 || ||rowspan=2| 84/0.3 || 396A || 1.9KA|| 10.7KA |- |10 || 0.1019 || 2.588 || 9.81 || 3.86 || 10.4 || 5.26 || 3.277 || 0.9989 || 30 / 35 / 40 || 333A || 1.5KA || 8.5KA |- |11 || 0.0907 || 2.305 || 11.0 || 4.34 || 8.23 || 4.17 || 4.132 || 1.260 || || 56/0.3 || 280A || 1.2KA || 6.7KA |- |12 || 0.0808 || 2.053 || 12.4 || 4.87 || 6.53 || 3.31 || 5.211 || 1.588 || 25 / 25 / 30 || || 235A || 955A || 5.3KA |- |13 || 0.0720 || 1.828 || 13.9 || 5.47 || 5.18 || 2.62 || 6.571 || 2.003 || || 50/0.25 || 198A || 758A || 4.2KA |- |14 || 0.0641 || 1.628 || 15.6 || 6.14 || 4.11 || 2.08 || 8.286 || 2.525 || 20 / 20 / 25 || || 166A || 601A || 3.3KA |- |15 || 0.0571 || 1.450 || 17.5 || 6.90 || 3.26 || 1.65 || 10.45 || 3.184 || ||rowspan=2| 30/0.25 || 140A || 477A || 2.7KA |- |16 || 0.0508 || 1.291 || 19.7 || 7.75 || 2.58 || 1.31 || 13.17 || 4.016 || — / — / 18 || 117A || 377A || 2.1KA |- |17 || 0.0453 || 1.150 || 22.1 || 8.70 || 2.05 || 1.04 || 16.61 || 5.064 || || 32/0.2 || 99A || 300A || 1.7KA |- |18 || 0.0403 || 1.024 || 24.8 || 9.77 || 1.62 || 0.823 || 20.95 || 6.385 || — / — / 14 ||rowspan=2| 24/0.2 || 83A || 237A || 1.3KA |- |19 || 0.0359 || 0.912 || 27.9 || 11.0 || 1.29 || 0.653 || 26.42 || 8.051 || || 70A || 189A || 1KA |- |20 || 0.0320 || 0.812 || 31.3 || 12.3 || 1.02 || 0.518 || 33.31 || 10.15 || || 16/0.2 || 58.5A || 149A || 834A |- |21 || 0.0285 || 0.723 || 35.1 || 13.8 || 0.810 || 0.410 || 42.00 || 12.80 || || 13/0.2 || 49A || 119A || 662A |- |22 || 0.0253 || 0.644 || 39.5 || 15.5 || 0.642 || 0.326 || 52.96 || 16.14 || || 7/0.25 || 41A || 94A || 525A |- |23 || 0.0226 || 0.573 || 44.3 || 17.4 || 0.509 || 0.258 || 66.79 || 20.36 || || || 35A || 74A || 416A |- |24 || 0.0201 || 0.511 || 49.7 || 19.6 || 0.404 || 0.205 || 84.22 || 25.67 || || 1/0.5, 7/0.2, 30/0.1|| 29A || 59A || 330A |- |25 || 0.0179 || 0.455 || 55.9 || 22.0 || 0.320 || 0.162 || 106.2 || 32.37 || || || 24A || 47A || 262A |- |26 || 0.0159 || 0.405 || 62.7 || 24.7 || 0.254 || 0.129 || 133.9 || 40.81 || || 7/0.15 || 20A || 37A || 208A |- |27 || 0.0142 || 0.361 || 70.4 || 27.7 || 0.202 || 0.102 || 168.9 || 51.47 || || |- |28 || 0.0126 || 0.321 || 79.1 || 31.1 || 0.160 || 0.0810 || 212.9 || 64.90 || || |- |29 || 0.0113 || 0.286 || 88.8 || 35.0 || 0.127 || 0.0642 || 268.5 || 81.84 || || |- |30 || 0.0100 || 0.255 || 99.7 || 39.3 || 0.101 || 0.0509 || 338.6 || 103.2 || || 1/0.25, 7/0.1 |- |31 || 0.00893 || 0.227 || 112 || 44.1 ||0.0797 || 0.0404 || 426.9 || 130.1 || || |- |32 || 0.00795 || 0.202 || 126 || 49.5 ||0.0632 || 0.0320 || 538.3 || 164.1 || || 1/0.2, 7/0.08 |- |33 || 0.00708 || 0.180 || 141 || 55.6 ||0.0501 || 0.0254 || 678.8 || 206.9 || || |- |34 || 0.00630 || 0.160 || 159 || 62.4 ||0.0398 || 0.0201 || 856.0 || 260.9 || || |- |35 || 0.00561 || 0.143 || 178 || 70.1 ||0.0315 || 0.0160 || 1079 || 329.0 || || |- |36 || 0.00500 || 0.127 || 200 || 78.7 ||0.0250 || 0.0127 || 1361 || 414.8 || || |- |37 || 0.00445 || 0.113 || 225 || 88.4 ||0.0198 || 0.0100 || 1716 || 523.1 || || |- |38 || 0.00397 || 0.101 || 252 || 99.3 ||0.0157 ||0.00797 || 2164 || 659.6 || || |- |39 || 0.00353 || 0.0897 || 283 || 111 ||0.0125 ||0.00632 || 2729 || 831.8 || || |- |40 || 0.00314 || 0.0799 || 318 || 125 ||0.00989 ||0.00501 || 3441 || 1049 || || |}