AWG a mm²: Complete Conversion Guide

In the United States and Canada, The sizes of electrical conductors are expressed in AWG (American Wire Gauge), while in Europe, Asia and most international markets are used square millimeters (mm²).

Due to this difference, engineers, Electricians and cable buyers frequently need a AWG to mm² conversion table Accurate to compare cable sizes and select the right conductor for each application.

For any queries related to AWG to mm2 conversion, contact Dosense Cable, he cable manufacturer.

What is AWG?

AWG (American Wire Gauge) is a standardized system used primarily in the United States and Canada to define the diameter of solid and nonferrous electrical conductors.

The AWG system works in reverse:

  • Smaller AWG numbers = larger conductor diameter
  • Larger AWG numbers = smaller conductor diameter

For example:

  • 4/0 AWG is much larger than 10 AWG
  • 10 AWG is larger than 20 AWG

Since most international standards use mm², AWG to mm² conversion is essential in global cable trade.

AWG to MM2

Why convert AWG to mm²?

Converting from AWG to mm² is important for several reasons:

1. International cable selection

Many countries specify cables in mm², while American standards use AWG. Conversion guarantees compatibility.

2. Current Capacity Comparison

The cross-sectional area of ​​the conductor directly affects the current carrying capacity (ampacity). Knowing the equivalence allows for more precise estimates.

3. engineering design

Electrical calculations according to IEC standards require the use of mm².

4. Purchasing and manufacturing

Buyers frequently compare AWG cables to metric cables when sourcing internationally.

AWG to mm² conversion table

Below is a complete conversion table, including conductor diameter and approximate weight of copper:

AWGDiameter (mm)Area (mm²)Weight (kg/km)
4/011.684107.15953
3/010.40484.95756
2/09.26667.49599
1/08.25253.46475
17.34842.43377
26.54433.59299
35.82726.69237
45.18921.16188
54.62116.76149
64.11513.33118
73.66510.5293.7
83.2648.34774.4
92.9066.65158.9
102.5885.26946.8
112.3054.15537.1
122.0533.30129.4
131.8282.6323.3
141.6282.08718.5
151.451.65114.7
161.2911.30711.6
171.151.0399.23
181.0240.80127.32
190.9120.65325.8
200.8120.51664.6
210.7230.41063.65
220.6440.32572.89
230.5730.25792.3
240.5110.20511.82
250.4550.16261.44
260.4050.12881.14
270.3610.10240.912
280.3210.080930.717
290.2860.06240.577
300.2550.051070.451
310.2270.040470.357
320.2020.032050.289
330.1800.025450.227
340.1600.020120.179
350.1430.016080.142
360.1270.012670.113

Common equivalences AWG to mm²

Some common conversions include:

  • 12 AWG = 3.31 mm²
  • 10 AWG = 5.26 mm²
  • 8 AWG = 8.37 mm²
  • 6 AWG = 13.3 mm²
  • 4 AWG = 21.1 mm²
  • 2 AWG = 33.6 mm²
  • 1/0 AWG = 53.5 mm²

They are commonly used in:

  • Electrical installations in buildings
  • automotive cables
  • Solar systems
  • battery cables
  • Industrial power cables

How to convert AWG to mm²?

The basic formula is: mm2=π4×d2mm^2 = frac{\pi}{4} \times d^2mm2=4π​×d2

Where d is the diameter of the conductor in millimeters.

However, since AWG follows a logarithmic scale, most engineers use standard tables instead of manual calculations.

AWG vs mm²: which is better?

No system is better; they are simply used in different regions:

AWG is mainly used in:

  • USA
  • Canada

mm² is mainly used in:

  • Europa
  • Asia
  • Middle East
  • Africa

For international projects, Understanding the conversion is key to avoiding technical errors.

Conclusion

Understanding the conversion from AWG to mm² is essential in:

  • electrical engineering
  • Cable manufacturing
  • International purchases

Using an accurate table allows:

  • Select the correct driver size
  • Compare international standards
  • Ensure current capacity
  • Optimize purchasing decisions

Whether you're designing electrical systems or purchasing cables, Having an AWG to mm² table will help you improve accuracy and save time.