# Square Feet to Square Inches Conversion

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

**Results in Square Inches:**

## How to Convert Square Feet to Square Inches

To convert a square foot measurement to a square inch measurement, multiply the area by the conversion ratio.

Since one square foot is equal to 144 square inches, you can use this simple formula to convert:

The area in square inches is equal to the square feet multiplied by 144.

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

### How Many Square Inches are in a Square Foot?

There are **144** square inches in a square foot, which is why we use this value in the formula above.

1 sq ft = 144 sq in

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

## Square Feet

One square foot is equal to the area of a square with sides that are 1 foot in length.^{[1]} One square foot is roughly equivalent 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 Inches

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

The square inch is a US customary and imperial unit of area. A square inch is sometimes also referred to as a square in. Square inches can be abbreviated as *sq in*, and are also sometimes abbreviated as *in²*. For example, 1 square inch can be written as 1 sq in or 1 in².

## Square Foot to Square Inch Conversion Table

Square Feet | Square Inches |
---|---|

1 sq ft | 144 sq in |

2 sq ft | 288 sq in |

3 sq ft | 432 sq in |

4 sq ft | 576 sq in |

5 sq ft | 720 sq in |

6 sq ft | 864 sq in |

7 sq ft | 1,008 sq in |

8 sq ft | 1,152 sq in |

9 sq ft | 1,296 sq in |

10 sq ft | 1,440 sq in |

11 sq ft | 1,584 sq in |

12 sq ft | 1,728 sq in |

13 sq ft | 1,872 sq in |

14 sq ft | 2,016 sq in |

15 sq ft | 2,160 sq in |

16 sq ft | 2,304 sq in |

17 sq ft | 2,448 sq in |

18 sq ft | 2,592 sq in |

19 sq ft | 2,736 sq in |

20 sq ft | 2,880 sq in |

21 sq ft | 3,024 sq in |

22 sq ft | 3,168 sq in |

23 sq ft | 3,312 sq in |

24 sq ft | 3,456 sq in |

25 sq ft | 3,600 sq in |

26 sq ft | 3,744 sq in |

27 sq ft | 3,888 sq in |

28 sq ft | 4,032 sq in |

29 sq ft | 4,176 sq in |

30 sq ft | 4,320 sq in |

31 sq ft | 4,464 sq in |

32 sq ft | 4,608 sq in |

33 sq ft | 4,752 sq in |

34 sq ft | 4,896 sq in |

35 sq ft | 5,040 sq in |

36 sq ft | 5,184 sq in |

37 sq ft | 5,328 sq in |

38 sq ft | 5,472 sq in |

39 sq ft | 5,616 sq in |

40 sq ft | 5,760 sq in |

## References

- Merriam-Webster, square foot, https://www.merriam-webster.com/dictionary/square%20foot