# Square Millimeters to Hectares Converter

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

**Results in Hectares:**

Do you want to convert hectares to square millimeters?

## How to Convert Square Millimeters to Hectares

To convert a square millimeter measurement to a hectare measurement, divide 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 hectares is equal to the square millimeters divided by 10,000,000,000.

**For example,**here's how to convert 5,000,000,000 square millimeters to hectares using the formula above.

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

## What is a Square Millimeter?

One square millimeter is equivalent to the area of a square with edges that are 1 millimeter in length. One square millimeter is equal to 0.00155 square inches or 1/100 of a square centimeter.

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 thousandths, or 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.

Learn more about square millimeters.

## What is a Hectare?

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.

Learn more about hectares.

## Square Millimeter to Hectare Conversion Table

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

1 sq mm | 0.0000000001 ha |

2 sq mm | 0.0000000002 ha |

3 sq mm | 0.0000000003 ha |

4 sq mm | 0.0000000004 ha |

5 sq mm | 0.0000000005 ha |

6 sq mm | 0.0000000006 ha |

7 sq mm | 0.0000000007 ha |

8 sq mm | 0.0000000008 ha |

9 sq mm | 0.0000000009 ha |

10 sq mm | 0.000000001 ha |

100 sq mm | 0.00000001 ha |

1,000 sq mm | 0.0000001 ha |

10,000 sq mm | 0.000001 ha |

100,000 sq mm | 0.00001 ha |

1,000,000 sq mm | 0.0001 ha |

10,000,000 sq mm | 0.001 ha |

100,000,000 sq mm | 0.01 ha |

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

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

## References

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

## More Square Millimeter & Hectare Conversions

- square millimeters to square miles
- square millimeters to acres
- square millimeters to square yards
- square millimeters to square feet
- square millimeters to square inches
- square millimeters to square kilometers
- square millimeters to square meters
- square millimeters to square centimeters
- square millimeters to ares
- square miles to hectares
- acres to hectares
- square yards to hectares
- square feet to hectares
- square inches to hectares
- square kilometers to hectares
- square meters to hectares
- square centimeters to hectares
- ares to hectares