Convert square inches to square feet
Square inch (in²) to square foot (ft²). One square inch equals 0.006944 square feet.
Formula
Square inch to square foot conversion table
| Square inches | Square feet | Square feet | Square inches |
|---|---|---|---|
| 1 in² | 0.006944 ft² | 1 ft² | 144 in² |
| 2 in² | 0.013889 ft² | 2 ft² | 288 in² |
| 3 in² | 0.020833 ft² | 3 ft² | 432 in² |
| 5 in² | 0.034722 ft² | 5 ft² | 720 in² |
| 10 in² | 0.069444 ft² | 10 ft² | 1440 in² |
| 20 in² | 0.138889 ft² | 20 ft² | 2880 in² |
| 50 in² | 0.347222 ft² | 50 ft² | 7200 in² |
| 100 in² | 0.694444 ft² | 100 ft² | 14400 in² |
| 500 in² | 3.4722 ft² | 500 ft² | 72000 in² |
| 1000 in² | 6.9444 ft² | 1000 ft² | 144000 in² |
To convert square inches to square feet, divide the number of square inches by 144. One square inch equals 0.006944 square feet, and one square foot equals 144 square inches, so the relationship is fixed and exact. As a worked example, 10 in² comes to 0.069444 ft². Enter your own figure in the converter above to get an instant answer, or use the swap button to flip the direction. This is a area conversion, and like every tool on UnitGlide it runs locally in your browser with no account or upload required. The table further down shows a range of common square inch values already worked out in square feet, plus the reverse square foot to square inch direction, which is handy for quick reference or double-checking a result by hand.
Frequently asked questions
How many square feet are in a square inch?
One square inch equals 0.006944 square feet. The ratio is constant, so you can multiply any number of square inches by 0.006944 to get square feet.
What is the formula to convert square inches to square feet?
Use square feet = square inches ÷ 144. UnitGlide applies this exact formula for every value, so results stay accurate across the whole range.
How do I convert square feet back to square inches?
Go the other way by using one square foot equals 144 square inches. You can also press the swap button in the converter above to flip the direction in one click.
Is this square inch to square foot converter accurate?
Yes. It uses internationally defined SI conversion factors, as maintained by the BIPM, and all math runs in your browser so nothing is rounded away on a server. For everyday use the displayed precision is more than enough.