# Wire Gauge Size Chart

## Online tools for wire gauge calculator and wire size chart

Please select awg from drop-down list or can also enter gauge value and select wire from drop-down list and enter Resistivity and click the calculate button to obtain result.

 Choose gauge #: — select AWG —000000000012345678910111213141516171819202122232425262728293031323334353637383940 Or Input gauge #: AWG Choose wire type: CopperAluminumCarbon steelElectrical steelGoldNichromeNickelSilver Resistivity: Ω·m Diameter (in inches): in Diameter (in millimeters): mm Cross sectional (area in kilo circular mils): kcmil Cross sectional (area in square inches): in2 Cross sectional (area in square millimeters): mm2 Resistance per 1000 feet: Ω/kft Resistance per 1000 meters: Ω/km

### How To calculate Wire diameter (if gauge wire diameter dm in inches)

dk(in) = 0.005 in × 92(36-k)/39

### How To calculate Wire diameter (if gauge wire diameter dm in millimeters)

dk(mm) = 0.005 mm × 92(36-k)/39

### How to calculate Wire cross sectional area (in kcmil)

Ak (kcmil) = 1000×dk2 = 0.025 in2 × 92(36-k)/19.5
An=cross sectional area in kilo-circular mils

dn=wire diameter d in inches

### How to calculate Wire cross sectional area (in inches)

Ak (in2) = (π/4)×dk2 = 0.000019635 in2 × 92(36-k)/19.5
An=cross sectional area in inches

dn=wire diameter d in inches

### How to calculate Wire cross sectional area (in millimeters)

Ak(mm2) = (π/4)×dk2 = 0.012668 mm2 × 92(36-k)/19.5

An=cross sectional area in millimeters

dn=wire diameter d in  millimeters

### How to calculate Wire resistance (per kilofeet)

Rk (Ω/kft) = 0.3048 × 109 × ρ(Ω·m) / (25.42 × Ak (in2))
R=resistance in ohms per kilofeet (Ω/kft)

ρ =wire’s resistivity in ohm-meters (Ω·m)
An=cross sectional area An in square millimeters (mm2)

### How to calculate Wire resistance (per  kilometer)

R(Ω/km) = 109 × ρ(Ω·m) / Ak (mm2)

R=resistance in ohms per kilometer (Ω/km)
ρ =wire’s resistivity  in ohm-meters (Ω·m)
Ak=cross sectional area An in square millimeters (mm2)

## AWG wire Chart

 AWG wire diameter dn Turns of wire Area Unit Copper resistance Unit inch mm per inch per cm kcmil mm2 O/km O/kFT 0000 (4/0) 0.4600 11.684 2.17 0.856 212 107 0.1608 0.04901 000 (3/0) 0.4096 10.404 2.44 0.961 168 85.0 0.2028 0.06180 00 (2/0) 0.3648 9.266 2.74 1.08 133 67.4 0.2557 0.07793 0 (1/0) 0.3249 8.252 3.08 1.21 106 53.5 0.3224 0.09827 1 0.2893 7.348 3.46 1.36 83.7 42.4 0.4066 0.1239 2 0.2576 6.544 3.88 1.53 66.4 33.6 0.5127 0.1563 3 0.2294 5.827 4.36 1.72 52.6 26.7 0.6465 0.1970 4 0.2043 5.189 4.89 1.93 41.7 21.2 0.8152 0.2485 5 0.1819 4.621 5.50 2.16 33.1 16.8 1.028 0.3133 6 0.1620 4.115 6.17 2.43 26.3 13.3 1.296 0.3951 7 0.1443 3.665 6.93 2.73 20.8 10.5 1.634 0.4982 8 0.1285 3.264 7.78 3.06 16.5 8.37 2.061 0.6282 9 0.1144 2.906 8.74 3.44 13.1 6.63 2.599 0.7921 10 0.1019 2.588 9.81 3.86 10.4 5.26 3.277 11 0.0907 2.305 11.0 4.34 8.23 4.17 4.132 1.260 12 0.0808 2.053 12.4 4.87 6.53 3.31 5.211 1.588 13 0.0720 1.828 13.9 5.47 5.18 2.62 6.571 2.003 14 0.0641 1.628 15.6 6.14 4.11 2.08 8.286 2.525 15 0.0571 1.450 17.5 6.90 3.26 1.65 10.45 3.184 16 0.0508 1.291 19.7 7.75 2.58 1.31 13.17 17 0.0453 1.150 22.1 8.70 2.05 1.04 16.61 5.064 18 0.0403 1.024 24.8 9.77 1.62 0.823 20.95 6.385 19 0.0359 0.912 27.9 11.0 1.29 0.653 26.42 20 0.0320 0.812 31.3 12.3 1.02 0.518 33.31 10.15 21 0.0285 0.723 35.1 13.8 0.810 0.410 42.00 12.80 22 0.0253 0.644 39.5 15.5 0.642 0.326 52.96 16.14 23 0.0226 0.573 44.3 17.4 0.509 0.258 66.79 20.36 24 0.0201 0.511 49.7 19.6 0.404 0.205 84.22 25.67 25 0.0179 0.455 55.9 22.0 0.320 0.162 106.2 32.37 26 0.0159 0.405 62.7 24.7 0.254 0.129 133.9 40.81 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 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 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