# Convert Square Miles to Acres

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

**Results in Acres:**

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

Convert square miles to acres with this simple formula:

Converting a square mile area measurement to an acre measurement involves multiplying your area by the conversion ratio to find the result. A square mile is equal to 640 acres, so to convert simply multiply by 640.

**For example:**

Use an acreage calculator to find the area of a plot of land in acres by locating the boundaries on a map.

Square miles and acres 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.
An acre is an imperial measurement and can be abbreviated as * ac*, for example 1 ac.

## Square Mile Measurements and Equivalent Acre Conversions

Square Miles | Acres |
---|---|

1 sq mi | 640 ac |

2 sq mi | 1,280 ac |

3 sq mi | 1,920 ac |

4 sq mi | 2,560 ac |

5 sq mi | 3,200 ac |

6 sq mi | 3,840 ac |

7 sq mi | 4,480 ac |

8 sq mi | 5,120 ac |

9 sq mi | 5,760 ac |

10 sq mi | 6,400 ac |

11 sq mi | 7,040 ac |

12 sq mi | 7,680 ac |

13 sq mi | 8,320 ac |

14 sq mi | 8,960 ac |

15 sq mi | 9,600 ac |

16 sq mi | 10,240 ac |

17 sq mi | 10,880 ac |

18 sq mi | 11,520 ac |

19 sq mi | 12,160 ac |

20 sq mi | 12,800 ac |

21 sq mi | 13,440 ac |

22 sq mi | 14,080 ac |

23 sq mi | 14,720 ac |

24 sq mi | 15,360 ac |

25 sq mi | 16,000 ac |

26 sq mi | 16,640 ac |

27 sq mi | 17,280 ac |

28 sq mi | 17,920 ac |

29 sq mi | 18,560 ac |

30 sq mi | 19,200 ac |

31 sq mi | 19,840 ac |

32 sq mi | 20,480 ac |

33 sq mi | 21,120 ac |

34 sq mi | 21,760 ac |

35 sq mi | 22,400 ac |

36 sq mi | 23,040 ac |

37 sq mi | 23,680 ac |

38 sq mi | 24,320 ac |

39 sq mi | 24,960 ac |

40 sq mi | 25,600 ac |

## More Area Conversions

- 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 Hectares Area
- 1 sq mi is equal to 258.998811 hectares
- 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