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|Copper resistance !!rowspan=2 |NEC copper wire ampacity with 60/75/ 90 °C insulation (A)!!rowspan=2| Approximate stranded metric equivalents!!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  || ||
 * }
 * 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  || ||
 * }
 * 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  || ||
 * }
 * 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  || ||
 * }
 * 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  || ||
 * }
 * }