SWG to mm Calculator
Imperial Standard Wire Gauge (SWG) Converter
Select an SWG size to instantly lookup the wire diameter and cross-sectional area per the British Standard Specification.
SWG Wire Gauge Reference Index
| SWG # | Diameter (inch) | Diameter (mm) | Area (mm²) |
|---|---|---|---|
| 7/0 | 0.500 | 12.700 | 126.677 |
| 6/0 | 0.464 | 11.786 | 109.096 |
| 5/0 | 0.432 | 10.973 | 94.568 |
| 4/0 | 0.400 | 10.160 | 81.073 |
| 3/0 | 0.372 | 9.449 | 70.123 |
| 2/0 | 0.348 | 8.839 | 61.364 |
| 0 | 0.324 | 8.230 | 53.200 |
| 1 | 0.300 | 7.620 | 45.604 |
| 2 | 0.276 | 7.010 | 38.595 |
| 3 | 0.252 | 6.401 | 32.179 |
| 4 | 0.232 | 5.893 | 27.275 |
| 5 | 0.212 | 5.385 | 22.774 |
| 6 | 0.192 | 4.877 | 18.681 |
| 7 | 0.176 | 4.470 | 15.696 |
| 8 | 0.160 | 4.064 | 12.972 |
| 10 | 0.128 | 3.251 | 8.302 |
| 12 | 0.104 | 2.642 | 5.482 |
| 14 | 0.080 | 2.032 | 3.243 |
| 16 | 0.064 | 1.626 | 2.076 |
| 18 | 0.048 | 1.219 | 1.167 |
| 20 | 0.036 | 0.914 | 0.656 |
What is the SWG To Mm Calculator?
The SWG To Mm Calculator is a fast, free online tool designed to help you quickly and accurately calculate or convert your values. Whether you are a student, engineer, professional, or hobbyist, this tool provides instant, high-precision results right in your browser.
How It Works
Our calculator uses industry-standard mathematical formulas and conversion factors to process your inputs. It runs completely locally in your browser, meaning it is lightning-fast and your data never leaves your device. Simply enter your known variables, and the dynamic engine will automatically perform the necessary computations in real-time.
How to Use It
1. Enter your starting values into the provided input fields.
2. Select the appropriate units or configuration options if applicable.
3. Click the calculate button (or watch as it auto-calculates) to get your instant results.
4. You can easily copy the result or reset the form to perform a new calculation.