# Convert Square Miles to Square Feet

Enter the area in square miles below to get the value converted to square feet.

**Results in Square Feet:**

## How to Convert Square Miles to Square Feet

To convert a square mile measurement to a square foot measurement, multiply the area by the conversion ratio. One square mile is equal to 27,878,399.996383 square feet, so use this simple formula to convert:

The area in square feet is equal to the square miles multiplied by 27,878,399.996383.

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

Square miles and square feet are both units used to measure area. Keep reading to learn more about each unit of measure.

## Square Miles

One square mile is equal to the area of a square with sides that are 1 mile long. One square mile is roughly equal to 2.59 square kilometers.

The square mile is a US customary and imperial unit of area. Square miles can be abbreviated as *sq mi*, and are also sometimes abbreviated as *mi²*. For example, 1 square mile can be written as 1 sq mi or 1 mi².

## Square Feet

One square foot is equal to the area of a square with sides that are 1 foot in length. One square foot is roughly equal to 144 square inches.

The square foot is a US customary and imperial unit of area. A square foot is sometimes also referred to as a square ft. Square feet can be abbreviated as *sq ft*, and are also sometimes abbreviated as *ft²*. For example, 1 square foot can be written as 1 sq ft or 1 ft².

Try our square footage calculator to calculate the area of a space.

## Square Mile Measurements and Equivalent Square Foot Conversions

Square Miles | Square Feet |
---|---|

1 sq mi | 27,878,400 sq ft |

2 sq mi | 55,756,800 sq ft |

3 sq mi | 83,635,200 sq ft |

4 sq mi | 111,513,600 sq ft |

5 sq mi | 139,392,000 sq ft |

6 sq mi | 167,270,400 sq ft |

7 sq mi | 195,148,800 sq ft |

8 sq mi | 223,027,200 sq ft |

9 sq mi | 250,905,600 sq ft |

10 sq mi | 278,784,000 sq ft |

11 sq mi | 306,662,400 sq ft |

12 sq mi | 334,540,800 sq ft |

13 sq mi | 362,419,200 sq ft |

14 sq mi | 390,297,600 sq ft |

15 sq mi | 418,176,000 sq ft |

16 sq mi | 446,054,400 sq ft |

17 sq mi | 473,932,800 sq ft |

18 sq mi | 501,811,200 sq ft |

19 sq mi | 529,689,600 sq ft |

20 sq mi | 557,568,000 sq ft |

21 sq mi | 585,446,400 sq ft |

22 sq mi | 613,324,800 sq ft |

23 sq mi | 641,203,200 sq ft |

24 sq mi | 669,081,600 sq ft |

25 sq mi | 696,960,000 sq ft |

26 sq mi | 724,838,400 sq ft |

27 sq mi | 752,716,800 sq ft |

28 sq mi | 780,595,200 sq ft |

29 sq mi | 808,473,600 sq ft |

30 sq mi | 836,352,000 sq ft |

31 sq mi | 864,230,400 sq ft |

32 sq mi | 892,108,800 sq ft |

33 sq mi | 919,987,200 sq ft |

34 sq mi | 947,865,600 sq ft |

35 sq mi | 975,744,000 sq ft |

36 sq mi | 1,003,622,400 sq ft |

37 sq mi | 1,031,500,800 sq ft |

38 sq mi | 1,059,379,200 sq ft |

39 sq mi | 1,087,257,600 sq ft |

40 sq mi | 1,115,136,000 sq ft |

## More Square Mile Area Conversions

**US Customary**

- Convert to Acres
- 1 sq mi is equal to 640 acres
- Convert to Square Yards
- 1 sq mi is equal to 3,097,600 square yards
- Convert to Square Inches
- 1 sq mi is equal to 4,014,489,599.5 square inches

**SI Units**

- Convert to Square Kilometers
- 1 sq mi is equal to 2.589988 square kilometers
- Convert to Square Meters
- 1 sq mi is equal to 2,589,988.1 square meters
- Convert to Square Centimeters
- 1 sq mi is equal to 25,899,881,100 square centimeters
- Convert to Square Millimeters
- 1 sq mi is equal to 2,589,988,110,000 square millimeters

**Other Metric Units**

- Convert to Hectares
- 1 sq mi is equal to 258.998811 hectares
- Convert to Ares
- 1 sq mi is equal to 25,899.9 ares