This handy chart will allow you to convert American Wire Gauge (AWG) to Inches and/or millimeters. Please note: All TDI wire cutters are for cutting of soft .....
In the world of electronics and metalworking, it's crucial to understand different measurement systems. Two common ones are the American Wire Gauge (AWG) and inches. If you're working with wires or need to convert AWG to inches, you've come to the right place. This guide will walk you through the process, ensuring you get accurate measurements every time.
The American Wire Gauge (AWG) is a standard used to measure the diameter of round, solid, electrical wires. It was introduced in 1857 and is still widely used today. The AWG system is based on a logarithmic scale, which means the difference in diameter between two consecutive gauges is not constant. The larger the AWG number, the smaller the wire diameter.
Inches are a standard unit of length in the Imperial and U.S. Customary systems of measurement. There are 12 inches in a foot and 36 inches in a yard. In the context of wire measurement, inches are often used to specify the outer diameter of a wire, including its insulation.

Converting AWG to inches can be useful in several scenarios. For instance, you might want to know the exact outer diameter of a wire for fitting it into a specific space. Or, you might need to compare the sizes of wires from different manufacturers that use different measurement systems. Whatever your reason, this guide will help you make accurate conversions.
The formula to convert AWG to inches is as follows:
Diameter in inches = (36 - (3.14 * AWG)) / 3.14

Let's break this down. The number 36 is a constant that represents the diameter of a No. 0000 AWG wire in thousandths of an inch. The term (3.14 * AWG) calculates the difference in diameter between the No. 0000 wire and the wire you're measuring. Finally, dividing by 3.14 converts the result from thousandths of an inch to inches.
Now that you understand the formula, let's convert some AWG sizes to inches. We'll use a table for easy reference:
| Wire Gauge (AWG) | Diameter (in inches) |
|---|---|
| 12 | 0.081 |
| 14 | 0.064 |
| 16 | 0.051 |
| 18 | 0.040 |
| 20 | 0.032 |
| 22 | 0.026 |
| 24 | 0.020 |
As you can see, the diameter of a wire decreases as the AWG number increases. This is because the AWG system is based on a logarithmic scale.
If you need to convert inches to AWG, you can use the following formula:
AWG = 36 / (Diameter in inches * 3.14) - 3.14
This formula is simply the reverse of the AWG to inches conversion. It's useful when you have a wire with a known diameter in inches and you want to know its AWG size.
That's it! With these formulas and tips, you should be able to convert AWG to inches with ease. Whether you're working with electrical wires, metalworking, or any other field that uses these measurement systems, accurate conversions are key. Happy measuring!
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