**Use this AWG to mm² calculator to convert between two different wire sizing systems: the American Wire Gauge (AWG) and metric square millimeter (mm²) measurement.**

The **AWG system** is predominantly used in **North America** and dates back to 1857. It uses a logarithmic scale to denote wire diameters, with lower numbers indicating thicker wires. For example, AWG 0 is thicker than AWG 10.

## AWG to MM2 Calculator

AWG | Calculation | mm² (calculated) | mm² (rounded) |
---|---|---|---|

0000 (4/0) | 0.012668 * 92^((36-(-3))/19.5) | 107.22 | 107.2 |

1/0 | 0.012668 * 92^((36-(-1))/19.5) | 53.48 | 53.5 |

3 | 0.012668 * 92^((36-3)/19.5) | 26.67 | 26.7 |

7 | 0.012668 * 92^((36-7)/19.5) | 10.55 | 10.6 |

11 | 0.012668 * 92^((36-11)/19.5) | 4.17 | 4.17 |

15 | 0.012668 * 92^((36-15)/19.5) | 1.65 | 1.65 |

19 | 0.012668 * 92^((36-19)/19.5) | 0.653 | 0.65 |

23 | 0.012668 * 92^((36-23)/19.5) | 0.258 | 0.26 |

27 | 0.012668 * 92^((36-27)/19.5) | 0.102 | 0.10 |

31 | 0.012668 * 92^((36-31)/19.5) | 0.0404 | 0.040 |

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## AWG to mm² Conversion Formula

The general formula to convert AWG to mm² is:

**A = π * (d/2)²**

Where:

**A**is the cross-sectional area in mm²**d**is the diameter of the wire in mm

To find **d**, we use the AWG number in the following formula:

**d = 0.127 * 92^((36-n)/39)**

Where **n** is the AWG number.

Combining these formulas, we get:

**A = π (0.127 92^((36-n)/39) / 2)²**

This formula can be simplified to:

**A ≈ 0.012668 * 92^((36-n)/19.5)**

While this formula provides the exact conversion, it’s important to note that in practical applications, wire sizes are often rounded to standard values.

## AWG to mm² Chart

AWG | mm² (approx.) |
---|---|

0000 | 107.2 |

000 | 85.0 |

00 | 67.4 |

0 | 53.5 |

1 | 42.4 |

2 | 33.6 |

2.5 | 33.6 |

4 | 21.2 |

5 | 16.7 |

6 | 13.3 |

8 | 8.37 |

10 | 5.26 |

12 | 3.31 |

14 | 2.08 |

16 | 1.31 |

17 | 1.0 |

18 | 0.823 |

20 | 0.518 |

22 | 0.326 |

24 | 0.205 |

26 | 0.129 |

28 | 0.0810 |

30 | 0.0509 |