Use our AWG Calculator to determine the appropriate wire diameter, electrical resistance, and maximum current for your application....
In the world of electronics, understanding wire gauge is crucial. Two common units of measurement for wire gauge are Millimeters Squared (MM2) and American Wire Gauge (AWG). If you're working with MM2 values and need to convert them to AWG, you've come to the right place. In this guide, we'll explain the conversion process, provide a handy calculator, and discuss why this conversion is important.
Before we dive into the conversion process, let's briefly understand what MM2 and AWG represent.
Converting MM2 to AWG is important for several reasons. Firstly, many electronic components and standards use AWG, so understanding AWG can help you choose the right wire for your project. Secondly, converting between units helps ensure consistency and accuracy in your work.

The conversion between MM2 and AWG involves a bit of math. The formula to convert MM2 to AWG is:
d = 36 * (30 * log10(r) - log10(1000 * π / 4)) / (7 * log10(10) - 3)
Where:

d is the AWG diameter in millimeters.r is the radius in millimeters, which can be calculated as sqrt(MM2 / π).While you can use the formula above to convert MM2 to AWG, it's much easier to use a calculator. Here's a simple calculator you can use:
| MM2 | AWG |
|---|---|
Here are a few tips to help you use the calculator:
Here are a few common MM2 to AWG conversions to help you get started:
| MM2 | AWG |
|---|---|
| 0.5 | 20 |
| 1.0 | 16 |
| 2.5 | 14 |
| 4.0 | 12 |
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