Home / Area Conversion / Convert Square Millimeter to Square Inch

# Convert Square Millimeter to Square Inch

Please provide values below to convert square millimeter [mm^2] to square inch [in^2], or *vice versa*.

### Square Millimeter to Square Inch Conversion Table

Square Millimeter [mm^2] | Square Inch [in^2] |
---|---|

0.01 mm^2 | 1.55E-5 in^2 |

0.1 mm^2 | 0.0001550003 in^2 |

1 mm^2 | 0.0015500031 in^2 |

2 mm^2 | 0.0031000062 in^2 |

3 mm^2 | 0.0046500093 in^2 |

5 mm^2 | 0.0077500155 in^2 |

10 mm^2 | 0.015500031 in^2 |

20 mm^2 | 0.031000062 in^2 |

50 mm^2 | 0.077500155 in^2 |

100 mm^2 | 0.15500031 in^2 |

1000 mm^2 | 1.5500031 in^2 |

### How to Convert Square Millimeter to Square Inch

1 mm^2 = 0.0015500031 in^2

1 in^2 = 645.16 mm^2

**Example:** convert 15 mm^2 to in^2:

15 mm^2 = 15 × 0.0015500031 in^2 = 0.0232500465 in^2