# Convert Square Miles to Hectares

Enter your square mile value in the form below to get the value calculated in hectares.

**Results in Hectares:**

## How to Convert Square Miles to Hectares Using an Easy Conversion Formula

Convert square miles to hectares with this simple formula:

Converting a square mile area measurement to a hectare measurement involves multiplying your area by the conversion ratio to find the result. A square mile is equal to 258.998811 hectares, so to convert simply multiply by 258.998811.

**For example:**

Learn more about finding the area of your space using our area calculator.

Square miles and hectares are both units used to measure area.
Learn more about area and
find more area measurement conversion calculators.
A square mile is an imperial measurement and can be abbreviated as * sq mi*, for example 1 sq mi.
A hectare is a metric measurement and can be abbreviated as * ha*, for example 1 ha.
Learn more about the metric system, including the common unit prefixes and how to convert between metric units.

## Square Mile Measurements and Equivalent Hectare Conversions

Square Miles | Hectares |
---|---|

1 sq mi | 259 ha |

2 sq mi | 518 ha |

3 sq mi | 777 ha |

4 sq mi | 1,036 ha |

5 sq mi | 1,295 ha |

6 sq mi | 1,554 ha |

7 sq mi | 1,813 ha |

8 sq mi | 2,072 ha |

9 sq mi | 2,331 ha |

10 sq mi | 2,590 ha |

11 sq mi | 2,849 ha |

12 sq mi | 3,108 ha |

13 sq mi | 3,367 ha |

14 sq mi | 3,626 ha |

15 sq mi | 3,885 ha |

16 sq mi | 4,144 ha |

17 sq mi | 4,403 ha |

18 sq mi | 4,662 ha |

19 sq mi | 4,921 ha |

20 sq mi | 5,180 ha |

21 sq mi | 5,439 ha |

22 sq mi | 5,698 ha |

23 sq mi | 5,957 ha |

24 sq mi | 6,216 ha |

25 sq mi | 6,475 ha |

26 sq mi | 6,734 ha |

27 sq mi | 6,993 ha |

28 sq mi | 7,252 ha |

29 sq mi | 7,511 ha |

30 sq mi | 7,770 ha |

31 sq mi | 8,029 ha |

32 sq mi | 8,288 ha |

33 sq mi | 8,547 ha |

34 sq mi | 8,806 ha |

35 sq mi | 9,065 ha |

36 sq mi | 9,324 ha |

37 sq mi | 9,583 ha |

38 sq mi | 9,842 ha |

39 sq mi | 10,101 ha |

40 sq mi | 10,360 ha |

## More Area Conversions

- Convert to Acres Area
- 1 sq mi is equal to 640 acres
- Convert to Square Yards Area
- 1 sq mi is equal to 3,097,600 square yards
- Convert to Square Feet Area
- 1 sq mi is equal to 27,878,400 square feet
- Convert to Square Inches Area
- 1 sq mi is equal to 4,014,489,599.5 square inches
- Convert to Square Kilometers Area
- 1 sq mi is equal to 2.589988 square kilometers
- Convert to Ares Area
- 1 sq mi is equal to 25,899.9 ares
- Convert to Square Meters Area
- 1 sq mi is equal to 2,589,988.1 square meters
- Convert to Square Centimeters Area
- 1 sq mi is equal to 25,899,881,100 square centimeters
- Convert to Square Millimeters Area
- 1 sq mi is equal to 2,589,988,110,000 square millimeters