# Hectares to Square Millimeters Conversion

Enter the area in hectares below to get the value converted to square millimeters.

**Results in Square Millimeters:**

1 ha = 100,000,000 sq cm

1 ha = 10,000 sq m

## How to Convert Hectares to Square Millimeters

To convert a hectare measurement to a square millimeter measurement, multiply the area by the conversion ratio.

Since one hectare is equal to 10,000,000,000 square millimeters, you can use this simple formula to convert:

The area in square millimeters is equal to the hectares multiplied by 10,000,000,000.

**For example,**here's how to convert 5 hectares to square millimeters using the formula above.

### How Many Square Millimeters are in a Hectare?

There are **10,000,000,000** square millimeters in a hectare, which is why we use this value in the formula above.

1 ha = 10,000,000,000 sq mm

Hectares and square millimeters are both units used to measure area. Keep reading to learn more about each unit of measure.

## Hectares

One hectare is equal to 10,000 square meters,^{[1]} or the area of a square with 100 meter sides.

The hectare is an SI accepted unit for area for use with the metric system. In the metric system, "hecto" is the prefix for 10^{2}. Hectares can be abbreviated as *ha*; for example, 1 hectare can be written as 1 ha.

## Square Millimeters

One square millimeter is equal to the area of a square with edges that are 1 millimeter in length.

The square millimeter, or square millimetre, is a multiple of the square meter, which is the SI derived unit for area. In the metric system, "milli" is the prefix for 10^{-3}. A square millimeter is sometimes also referred to as a square mm. Square millimeters can be abbreviated as *sq mm*, and are also sometimes abbreviated as *mm²*. For example, 1 square millimeter can be written as 1 sq mm or 1 mm².

## Hectare to Square Millimeter Conversion Table

Hectares | Square Millimeters |
---|---|

0.0000000001 ha | 1 sq mm |

0.0000000002 ha | 2 sq mm |

0.0000000003 ha | 3 sq mm |

0.0000000004 ha | 4 sq mm |

0.0000000005 ha | 5 sq mm |

0.0000000006 ha | 6 sq mm |

0.0000000007 ha | 7 sq mm |

0.0000000008 ha | 8 sq mm |

0.0000000009 ha | 9 sq mm |

0.00000000001 ha | 0.1 sq mm |

0.0000000001 ha | 1 sq mm |

0.000000001 ha | 10 sq mm |

0.00000001 ha | 100 sq mm |

0.0000001 ha | 1,000 sq mm |

0.000001 ha | 10,000 sq mm |

0.00001 ha | 100,000 sq mm |

0.0001 ha | 1,000,000 sq mm |

0.001 ha | 10,000,000 sq mm |

0.01 ha | 100,000,000 sq mm |

0.1 ha | 1,000,000,000 sq mm |

1 ha | 10,000,000,000 sq mm |

## References

- Cambridge Dictionary, hectare, https://dictionary.cambridge.org/us/dictionary/english/hectare