Wire Chart. AWG and European Wire Current Rating

This is a wire chart combined of American Wire Gauge AWG (Chassis Wiring, single free hanging wire) table from national electrical code and the European standards for machine wiring at +40 oC, EN 60204-1. Circular mils and wire diameter is given with current carrying capacities so you can choose the right gauge number. The calculated skin depth is where the entire wire is conducting current, higher frequencies are possible if the application can operate with current only flowing in the outer layers of the bare copper wire. As a quick rule of thumb, using aluminum wire, only has half the current capability of copper, or you can say that you have to use a larger wire, that is twice as big as it should have been with copper. Aluminum is however problematic as there is issues with corrosion near moisture, it cracks easily when bent and electrolytic reactions between aluminum and copper.

AWGDiameterCross section areaAmperage valueMax frequency for 100% skin depth
 12.36 mm120 mm2221 A 
000011.68 mm107.16 mm2380 A125 Hz
 11.00 mm95 mm2192 A
00010.40 mm84.97 mm2 328 A160 Hz
 9.44 mm70 mm2155 A
009.27 mm67.40 mm2 283 A200 Hz
08.25 mm53.46 mm2 245 A250 Hz
 7.98 mm50 mm2123 A
17.35 mm42.39 mm2 211 A325 Hz
 6.67 mm35 mm2114 A
26.54 mm33.61 mm2 181 A410 Hz
35.83 mm26.65 mm2 158 A500 Hz
 5.64 mm25 mm288 A
45.19 mm21.14 mm2 135 A650 Hz
54.62 mm16.76 mm2 118 A810 Hz
 4.51 mm16 mm270 A
64.11 mm13.29 mm2 101 A1100 Hz
73.67 mm10.55 mm2 89 A1300 Hz
 3.57 mm10 mm252 A
83.26 mm8.36 mm2 73 A1650 Hz
92.91 mm6.63 mm2 64 A2050 Hz
 2.76 mm6 mm237 A
102.59 mm5.26 mm2 55 A2600 Hz
112.30 mm4.17 mm2 47 A3200 Hz
 2.26 mm4 mm230 A
122.05 mm3.31 mm241 A4150 Hz
131.83 mm2.63 mm235 A5300 Hz
 1.78 mm2.50 mm222 A
141.63 mm2.08 mm232 A6700 Hz
151.45 mm1.65 mm228 A8250 Hz
 1.38 mm1.5 mm216.1 A
161.29 mm1.31 mm222 A11 kHz
171.15 mm1.04 mm219 A13 kHz
 1.13 mm1 mm211.5 A
181.02 mm0.82 mm216 A17 kHz
 0.98 mm0.75 mm29.1 A
190.91 mm0.65 mm214 A21 kHz
200.81 mm0.52 mm2 11 A27 kHz
 0.80 mm0.5 mm27.1 A
210.72 mm0.41 mm2 9 A33 kHz
220.65 mm0.33 mm2 7 A42 kHz
 0.62 mm0.3 mm25 A
230.57 mm0.26 mm2 4.7 A53 kHz
240.51 mm0.20 mm24 A68 kHz
250.45 mm0.16 mm22.7 A85 kHz
260.40 mm0.13 mm22.2 A107 kHz
270.361 mm0.102 mm21.7 A 130 kHz
280.321 mm0.081 mm2 1.4 A170 kHz
290.286 mm0.0642 mm2 1.2 A210 kHz
300.255 mm0.0509 mm2 0.86 A270 kHz
310.227 mm0.0404 mm2 0.7 A340 kHz
320.202 mm0.0320 mm2 0.53 A430 kHz
330.180 mm0.0254 mm2 0.43 A540 kHz
340.160 mm0.0201 mm2 0.33 A690 kHz
350.143 mm0.0160 mm20.27 A870 kHz
360.127 mm0.0127 mm2 0.21 A1100 kHz
370.113 mm0.01 mm2 0.17 A1350 kHz
380.101 mm0.00797 mm2 0.13 A1750 kHz
390.0887 mm0.00632 mm2 0.11 A2250 kHz
400.0799 mm0.00501 mm2 0.09 A2900 kHz
awg amp chart, wire size amp chart, awg current rating, copper wire size chart, wire size table.

To find the 100A wire size, look above for 6 AWG. The above table might also be known as wire gauge amperage chart, awg wire size, wire size amperage, wire ampacity table, wire amperage, wire gauge diameter or wire gauge current rating.

American Wire Gauge or AWG for short is also known as Brown & Sharpe wire gauge, it is based on a logarithmic stepped set of standardized wire gauge values and have been used since 1857, in North America. It is only for the diameters of round, solid, nonferrous, electrically conducting wires. Diameters of the wires are given in ASTM standard B 258.

Published November 5, 2009. Updated October 31, 2021.

16 thoughts on “Wire Chart. AWG and European Wire Current Rating”

  1. Pingback: gauges size 10 | julen2015-dk.com

  2. Cyril immanuel

    NZ wiring as per British standard or American standard for domestic wiring please clarified for 50 Hz,OR 60 Hz

  3. Good idea but a bit crippled implementation…
    Why are so many empty cells in this table for amperage and how is one suppose to know from where to take the value for such an empty cell (ie from the cell above or the one below)?
    For example, 1.45 mm diameter should it be 16.1 A or 22A?

  4. Hi Lian

    I updated the table with AWG current rating values, but as you can see, the European and American does not scale even, so its up to how conservative you want to design which rating you will use, it is afterall just a matter of how much temperature rise you will allow 🙂

    You can not just pick a value up or downwards from another gauge wire.

    Kind regards

  5. What is the European wire size for the length of 3 phase with 25 amperage at 100 meters?

  6. What is the maximum current 0.51mm insulated winding wire ( used for coils ) can handle before the insulation is destroyed. Or put another way best operation current.

  7. Pingback: Wires, Cables, Busbar and More Wires

  8. I’m making a model railway for my grandson. I have to use a CDU for the points and have been told it needs a 3Amp charge because I’ll be using 5 points. However, they will not be put on all together, which I think won’t be using that 3 amp but much less. I’ve got 0.6mm aluminium wire. Could you please help me to be able to work as I would like to?
    PS; I’m an ancient Biochemist who has very little knowledge on electronics.
    Thanks in advance for your help

  9. Hi Tony

    Aluminium can carry about half the current of copper, so 0.6 mm would be just below what is needed for 3 A, if there is good enough connections and the wire is able to dissipate heat, you could properly get away with it. Do not put it into a lot of foam and stuff.

    Use some proper sized wire and avoid any fire risks.

    Kind regards

  10. I am an American living in Italy. Your amperage ratings for AWG are way off. From what we use per code and common practice. 14 AWG: 15 amps, 12 AWG: 20 amps, 10 AWG: 30 amps. Those were the ones we used for most wiring. I believe 8 AWG: 60 amps. 100 amps is one or two ought (0 or 00). Except for the first three I always look it up when I need them. No wonder Italian wires look so small.

  11. Hi Daniel

    The AWG numbers are as stated, from single wire, free hanging at 30 degree Celsius. For a better compare, I properly should derate the AWG by 0.82 for 40 degree Celsius.

    You’re numbers seems to be for multicore, up to 3 cores.

    Kind regards

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