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Magnet Wire

Magnet Wire Gauge Chart

This page provides a comprehensive magnet wire gauge chart for referencing AWG wire sizes, conductor diameter, resistance, and current-carrying characteristics. The chart is designed for technical reference and is commonly used when working with magnet wire and solid copper wire in electrical, winding, and manufacturing applications.

In addition to magnet wire data, the chart also includes copper wire size and resistance information, making it useful as both a magnet wire chart and a copper wire gauge chart for bare conductor reference.

This magnet wire gauge chart is part of our broader collection of wire gauge charts and material specifications available in the Resources section.

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Magnet Wire and Copper Wire Gauge Chart

View this table as a  PDF.

Solid Copper Wire & Magnet Wire Data by AWG
AWG Bare Diameter Bare Area DC Resistance Maximum Current 1 Maximum Frequency 2 Single Build Dia. Heavy Build Dia.
in mm circ. mils mm2 Ω/1000 ft Ω/km in mm in mm
0000 (4/0) 0.4600 11.684 211.2 kcmil 107.0 0.0490 0.1607 302 A 125 Hz — — — —
000 (3/0) 0.4096 10.404 167.7 kcmil 85.0 0.0618 0.2027 239 A 160 Hz — — — —
00 (2/0) 0.3648 9.266 133.0 kcmil 67.4 0.0779 0.2555 190 A 200 Hz — — — —
0 (1/0) 0.3249 8.252 105.6 kcmil 53.5 0.0983 0.3224 150 A 250 Hz — — — —
1 0.2893 7.348 83.68 kcmil 42.4 0.1239 0.4064 119 A 325 Hz — — — —
2 0.2576 6.543 66.31 kcmil 33.6 0.1563 0.5127 94 A 410 Hz — — 0.2611 6.632
3 0.2294 5.827 52.69 kcmil 26.7 0.1970 0.6462 75 A 500 Hz — — 0.2330 5.918
4 0.2043 5.189 41.84 kcmil 21.2 0.2485 0.8151 60 A 650 Hz — — 0.2079 5.281
5 0.1819 4.620 33.16 kcmil 16.8 0.3133 1.0276 47 A 810 Hz — — 0.1856 4.714
6 0.1620 4.115 26.25 kcmil 13.3 0.3951 1.2959 37 A 1.10 kHz 0.1648 4.186 0.1656 4.206
7 0.1443 3.665 20.72 kcmil 10.5 0.4982 1.6341 30 A 1.30 kHz 0.1469 3.731 0.1478 3.754
8 0.1285 3.264 16.52 kcmil 8.37 0.6282 2.0605 24 A 1.65 kHz 0.1302 3.307 0.1320 3.353
9 0.1144 2.906 13.08 kcmil 6.63 0.7921 2.5981 19 A 2.05 kHz 0.1162 2.951 0.1179 2.995
10 0.1019 2.588 10.38 kcmil 5.26 0.9989 3.2764 15 A 2.60 kHz 0.1037 2.634 0.1054 2.677
11 0.0907 2.304 8.230 kcmil 4.17 1.260 4.1328 12 A 3.20 kHz 0.0925 2.350 0.0942 2.393
12 0.0808 2.052 6.532 kcmil 3.31 1.588 5.2086 9.3 A 4.15 kHz 0.0825 2.096 0.0842 2.139
13 0.0720 1.829 5.171 kcmil 2.62 2.003 6.5698 7.4 A 5.30 kHz 0.0737 1.872 0.0754 1.915
14 0.0641 1.628 4.105 kcmil 2.08 2.525 8.2820 5.9 A 6.70 kHz 0.0659 1.674 0.0675 1.715
15 0.0571 1.450 3.256 kcmil 1.65 3.184 10.444 4.7 A 8.25 kHz 0.0587 1.491 0.0603 1.532
16 0.0508 1.290 2.585 kcmil 1.31 4.016 13.172 3.7 A 11 kHz 0.0524 1.331 0.0539 1.369
17 0.0453 1.151 2.052 kcmil 1.04 5.064 16.610 2.9 A 13 kHz 0.0469 1.191 0.0482 1.224
18 0.0403 1.024 1.624 kcmil 0.823 6.385 20.943 2.3 A 17 kHz 0.0418 1.062 0.0431 1.095
19 0.0359 0.912 1.289 kcmil 0.653 8.051 26.407 1.8 A 21 kHz 0.0373 0.947 0.0386 0.980
20 0.0320 0.813 1.022 kcmil 0.518 10.15 33.292 1.5 A 27 kHz 0.0335 0.851 0.0346 0.879
21 0.0285 0.724 809.1 cmil 0.410 12.80 41.984 1.2 A 33 kHz 0.0298 0.757 0.0310 0.787
22 0.0254 0.645 643.4 cmil 0.326 16.14 52.939 920 mA 42 kHz 0.0266 0.676 0.0276 0.701
23 0.0226 0.574 509.2 cmil 0.258 20.36 66.781 729 mA 53 kHz 0.0239 0.607 0.0249 0.632
24 0.0201 0.511 404.6 cmil 0.205 25.67 84.198 577 mA 68 kHz 0.0213 0.541 0.0223 0.566
25 0.0179 0.455 319.7 cmil 0.162 32.37 106.17 457 mA 85 kHz 0.0190 0.483 0.0199 0.505
26 0.0159 0.404 254.6 cmil 0.129 40.81 133.86 361 mA 107 kHz 0.0170 0.432 0.0178 0.452
27 0.0142 0.361 201.3 cmil 0.102 51.47 168.82 288 mA 130 kHz 0.0153 0.389 0.0161 0.409
28 0.0126 0.320 159.9 cmil 0.081 64.90 212.87 226 mA 170 kHz 0.0137 0.348 0.0144 0.366
29 0.0113 0.287 126.7 cmil 0.064 81.83 268.40 182 mA 210 kHz 0.0123 0.312 0.0130 0.330
30 0.0100 0.254 100.5 cmil 0.051 103.2 338.50 142 mA 270 kHz 0.0109 0.277 0.0117 0.297
31 0.0089 0.226 79.73 cmil 0.040 130.1 426.73 113 mA 340 kHz 0.0097 0.246 0.0104 0.264
32 0.0080 0.203 63.15 cmil 0.032 164.1 538.25 91.0 mA 430 kHz 0.0088 0.224 0.0094 0.239
33 0.0071 0.180 50.13 cmil 0.025 206.9 678.63 72.0 mA 540 kHz 0.0078 0.198 0.0084 0.213
34 0.0063 0.160 39.67 cmil 0.020 260.9 855.75 56.0 mA 690 kHz 0.0070 0.178 0.0075 0.191
35 0.0056 0.142 31.58 cmil 0.016 329.0 1079.1 44.0 mA 870 kHz 0.0062 0.157 0.0067 0.170
36 0.0050 0.127 25.06 cmil 0.013 414.8 1360.0 35.0 mA 1.10 MHz 0.0056 0.142 0.0060 0.152
37 0.0045 0.114 19.74 cmil 0.010 523.1 1715.0 28.9 mA 1.35 MHz 0.0050 0.127 0.0054 0.137
38 0.0040 0.102 15.73 cmil 0.0080 659.6 2163.0 22.8 mA 1.75 MHz 0.0045 0.114 0.0048 0.122
39 0.0035 0.0889 12.47 cmil 0.0063 831.8 2728.0 17.5 mA 2.25 MHz 0.0040 0.102 0.0042 0.107
40 0.0031 0.0787 9.887 cmil 0.0050 1049 3440.0 13.7 mA 2.90 MHz 0.0035 0.0889 0.0038 0.0965
41 0.0028 0.0711 7.835 cmil 0.0040 1316 4317.0 11.2 mA 3.35 MHz 0.0032 0.0813 0.0035 0.0889
42 0.0025 0.0635 6.256 cmil 0.0032 1652 5421.0 8.9 mA 4.20 MHz 0.0028 0.0711 0.0031 0.0787
43 0.0022 0.0559 4.835 cmil 0.0025 2137 7011.0 6.9 mA 5.50 MHz 0.0025 0.0635 0.0027 0.0686
44 0.0020 0.0508 4.006 cmil 0.0020 2589 8495.0 5.7 mA 6.55 MHz 0.0023 0.0584 0.0024 0.0610
45 0.00176 0.0447 3.098 cmil 0.0016 3348 10864 4.4 mA 8.50 MHz 0.00205 0.0521 0.00225 0.0572
46 0.00157 0.0399 2.467 cmil 0.0013 4207 13802 3.5 mA 10.7 MHz 0.00173 0.0439 0.00196 0.0498
47 0.00140 0.0356 1.954 cmil 0.0010 5291 17359 2.8 mA 13.4 MHz 0.00157 0.0399 0.00177 0.0450
48 0.00124 0.0315 1.539 cmil 0.0008 6745 22129 2.2 mA 17.1 MHz 0.00140 0.0356 0.00155 0.0394
49 0.00111 0.0282 1.224 cmil 0.00062 8417 27615 1.7 mA 21.4 MHz 0.00124 0.0315 0.00139 0.0353
50 0.00099 0.0252 0.987 cmil 0.00050 10580 34711 1.4 mA 26.9 MHz 0.00113 0.0287 0.00128 0.0325

Click any number in red to view the webpage for that standard Remington Industries product.

1  Maximum Current: These ampacities are based on a very moderate rating of 700 circular mils per amp (cma). Determining a more accurate current rating depends on a variety of factors including the surrounding materials, permissible temperature rise, and specific usage of the wire. When applicable, consult your local electrical code to determine what parameters are legal.

2  Maximum Frequency: These are the highest frequencies where you can still achieve 100% skin depth (i.e. no skin effect). Skin effect is the tendency of AC currents to distribute near the surface of a conductor, which reduces the effective utilized conductor area and increases the effective resistance. If you operate above the maximum frequency, you should start to account for the skin effect when considering the conductor’s resistance.

All values are nominal unless otherwise specified.

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A magnet wire gauge chart shows how AWG sizes correspond to physical wire dimensions and electrical properties. Because magnet wire is made using a solid copper conductor, the chart focuses on the actual conductor size, allowing for accurate comparison of wire gauges.

This type of chart is commonly used as a:

  • Magnet wire gauge chart for winding and coil applications
  • Magnet wire size chart for comparing AWG conductor sizes
  • Copper wire gauge chart for solid copper conductor reference

The data applies to bare copper conductors, making it suitable for use as a solid copper wire gauge chart when insulation thickness is not a factor.

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Magnet Wire Product Categories

Once you’ve identified the appropriate wire gauge and specifications, explore our available magnet wire products below.

Wire Diameter and Actual Size Measurements

Wire gauge charts are often referenced to confirm the actual size of a wire based on its measured diameter. In AWG-based systems, each gauge corresponds to a specific conductor diameter, typically listed in inches or millimeters.

For this reason, a magnet wire gauge chart may also be referred to as an actual size wire gauge chart, as it allows users to verify conductor dimensions rather than relying on nominal labels alone. Diameter-based reference data is especially useful when:

  • Verifying wire size during inspection
  • Matching wire to terminals or tooling
  • Comparing different magnet wire or copper wire gauges

This information is also commonly used when referencing a copper wire size chart for bare conductor applications.

Magnet Wire and Copper Wire Resistance Charts

Resistance data is a critical component of any wire resistance chart. For magnet wire and solid copper wire, resistance values are typically expressed as ohms per unit length, allowing users to compare electrical performance across different AWG sizes.

This page includes resistance data commonly referenced as:

  • Magnet wire resistance chart
  • Copper wire resistance chart
  • AWG copper resistance ohms per 1000 ft table

These values are frequently used when designing coils, calculating voltage drop, or comparing efficiency between wire gauges. Because the data is AWG-based, it applies to both magnet wire and solid copper conductors.

Magnet Wire Ampacity and Current Rating

Ampacity refers to the maximum electrical current a wire can carry under specific conditions. A magnet wire ampacity chart or magnet wire current rating reference helps users understand how conductor size relates to current-carrying capability.

When reviewing ampacity data for magnet wire, it’s important to note that values are provided as reference data only. Actual allowable current may vary depending on factors such as:

  • Operating temperature
  • Heat dissipation
  • Application-specific conditions

Ampacity information may also be used alongside a copper wire ampacity chart when comparing bare copper conductors of different sizes.

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Download the Magnet Wire Gauge Chart (PDF)

For users who prefer a printable or offline reference, the complete magnet wire gauge chart PDF is available for download. The PDF contains the same core data shown on this page, including:

  • AWG wire sizes
  • Conductor diameter
  • Resistance values
  • Ampacity reference data

This downloadable resource is often searched for as a magnet wire gauge chart PDF or copper wire gauge chart PDF and is useful for shop reference, documentation, or sharing specifications internally.

Download the Magnet Wire Gauge Chart (PDF)[Opens in a new window]

Additional Magnet Wire Data Sheets

Using This Magnet Wire Chart as Reference Data

All data provided on this page is intended for general reference and informational use. While a magnet wire gauge chart, resistance table, or ampacity chart can be valuable tools, application-specific requirements may vary.

Always verify specifications, consult applicable standards, and account for environmental and operating conditions when selecting magnet wire or copper wire for a particular application.

For additional wire gauge charts and material data, visit our main Resources page.

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