{"chart":"awg-wire-size-chart","generatedFrom":"All Unit Conversions shared conversion library","tables":[{"title":"AWG sizes, dimensions and copper resistance","headers":["AWG","Diameter (in)","Diameter (mm)","Area (mm²)","Area (kcmil)","Ω per km","Ω per 1000 ft","Nearest mm²"],"rows":[["4/0 (0000)","0.4600","11.684","107.2","211.6","0.1608","0.04901","120"],["3/0 (000)","0.4096","10.405","85.03","167.8","0.2028","0.0618","95"],["2/0 (00)","0.3648","9.266","67.43","133.1","0.2557","0.07793","70"],["1/0 (0)","0.3249","8.251","53.48","105.5","0.3224","0.09827","50"],["1","0.2893","7.348","42.41","83.69","0.4066","0.1239","50"],["2","0.2576","6.544","33.63","66.37","0.5127","0.1563","35"],["3","0.2294","5.827","26.67","52.63","0.6465","0.197","25"],["4","0.2043","5.189","21.15","41.74","0.8152","0.2485","25"],["5","0.1819","4.621","16.77","33.1","1.028","0.3133","16"],["6","0.1620","4.115","13.3","26.25","1.296","0.3951","16"],["7","0.1443","3.665","10.55","20.82","1.634","0.4982","10"],["8","0.1285","3.264","8.366","16.51","2.061","0.6282","10"],["9","0.1144","2.906","6.634","13.09","2.599","0.7921","6"],["10","0.1019","2.588","5.261","10.38","3.277","0.9989","6"],["11","0.0907","2.305","4.172","8.234","4.132","1.26","4"],["12","0.0808","2.053","3.309","6.53","5.211","1.588","4"],["13","0.0720","1.828","2.624","5.178","6.571","2.003","2.5"],["14","0.0641","1.628","2.081","4.107","8.286","2.525","2.5"],["15","0.0571","1.450","1.65","3.257","10.45","3.184","1.5"],["16","0.0508","1.291","1.309","2.583","13.17","4.016","1.5"],["17","0.0453","1.150","1.038","2.048","16.61","5.064","1"],["18","0.0403","1.024","0.823","1.624","20.95","6.385","0.75"],["19","0.0359","0.912","0.6527","1.288","26.42","8.051","0.75"],["20","0.0320","0.812","0.5176","1.022","33.31","10.15","0.5"],["21","0.0285","0.723","0.4105","0.8101","42","12.8","0.5"],["22","0.0253","0.644","0.3255","0.6424","52.96","16.14","—"],["23","0.0226","0.573","0.2582","0.5095","66.79","20.36","—"],["24","0.0201","0.511","0.2047","0.404","84.22","25.67","—"],["25","0.0179","0.455","0.1624","0.3204","106.2","32.37","—"],["26","0.0159","0.405","0.1288","0.2541","133.9","40.81","—"],["27","0.0142","0.361","0.1021","0.2015","168.9","51.47","—"],["28","0.0126","0.321","0.08098","0.1598","212.9","64.9","—"],["29","0.0113","0.286","0.06422","0.1267","268.5","81.84","—"],["30","0.0100","0.255","0.05093","0.1005","338.6","103.2","—"],["31","0.0089","0.227","0.04039","0.0797","426.9","130.1","—"],["32","0.0080","0.202","0.03203","0.06321","538.3","164.1","—"],["33","0.0071","0.180","0.0254","0.05013","678.8","206.9","—"],["34","0.0063","0.160","0.02014","0.03975","856","260.9","—"],["35","0.0056","0.143","0.01597","0.03152","1,079","329","—"],["36","0.0050","0.127","0.01267","0.025","1,361","414.8","—"],["37","0.0045","0.113","0.01005","0.01983","1,716","523.1","—"],["38","0.0040","0.101","0.007967","0.01572","2,164","659.6","—"],["39","0.0035","0.090","0.006318","0.01247","2,729","831.8","—"],["40","0.0031","0.080","0.00501","0.009888","3,441","1,049","—"]]},{"title":"Metric cable sizes (IEC 60228) to AWG","headers":["Area (mm²)","Solid diameter (mm)","Area (kcmil)","Nearest AWG","Ω per km (copper)"],"rows":[["0.5","0.80","0.9868","20","34.48"],["0.75","0.98","1.48","18","22.99"],["1","1.13","1.974","17","17.24"],["1.5","1.38","2.96","15","11.49"],["2.5","1.78","4.934","13","6.897"],["4","2.26","7.894","11","4.31"],["6","2.76","11.84","9","2.874"],["10","3.57","19.74","7","1.724"],["16","4.51","31.58","5","1.078"],["25","5.64","49.34","3","0.6897"],["35","6.68","69.07","2","0.4926"],["50","7.98","98.68","1/0 (0)","0.3448"],["70","9.44","138.1","2/0 (00)","0.2463"],["95","11.00","187.5","3/0 (000)","0.1815"],["120","12.36","236.8","4/0 (0000)","0.1437"],["150","13.82","296","4/0 (0000)","0.1149"],["185","15.35","365.1","4/0 (0000)","0.0932"],["240","17.48","473.6","4/0 (0000)","0.07184"],["300","19.54","592.1","4/0 (0000)","0.05747"],["400","22.57","789.4","4/0 (0000)","0.0431"],["500","25.23","986.8","4/0 (0000)","0.03448"],["630","28.32","1,243","4/0 (0000)","0.02737"]]},{"title":"Using this chart","headers":["Point","What to know"],"rows":[["Stranded wire","A stranded conductor of the same gauge has about the same copper area but a slightly larger overall diameter."],["Resistance and temperature","Copper resistance rises about 0.393% per °C above 20 °C; at 75 °C it is about 22% higher than shown."],["Current rating","Ampacity depends on insulation, installation method, bundling and ambient temperature. Use NEC Table 310.16, BS 7671 or IEC 60364-5-52."],["kcmil and MCM","1 kcmil = 1,000 circular mils = 0.5067 mm². Sizes above 4/0 are named in kcmil (250, 300, 350 …)."],["Voltage drop","Two-wire drop = 2 × length × current × Ω per unit length. Many codes recommend no more than 3% to 5%."]]}]}