Square feet to square inches converter
Square inches (in²)
1 square foot = 144 square inches
How to convert square feet to square inches
in² = ft² × 144
Multiply the number of square feet by 144 to get square inches. Going the other way, divide by 144 (or multiply by 0.00694444444444).
One square foot is exactly defined as 144 square inches (to 12 significant figures), and one square inch is 0.00694444444444 square feet.
Worked examples
- Convert 5 square feet: 5 × 144 = 720 720 square inches.
- Convert 12.5 square feet: 12.5 × 144 = 1,800 1,800 square inches.
- Convert 250 square feet: 250 × 144 = 36,000 36,000 square inches.
Quick-reference table
| ft² | in² |
|---|---|
| 1 | 144 |
| 2 | 288 |
| 3 | 432 |
| 5 | 720 |
| 10 | 1,440 |
| 15 | 2,160 |
| 20 | 2,880 |
| 25 | 3,600 |
| 50 | 7,200 |
| 75 | 10,800 |
| 100 | 14,400 |
| 1,000 | 144,000 |
| in² | ft² |
|---|---|
| 1 | 0.006944444444 |
| 2 | 0.01388888889 |
| 3 | 0.02083333333 |
| 5 | 0.03472222222 |
| 10 | 0.06944444444 |
| 15 | 0.1041666667 |
| 20 | 0.1388888889 |
| 25 | 0.1736111111 |
| 50 | 0.3472222222 |
| 75 | 0.5208333333 |
| 100 | 0.6944444444 |
| 1,000 | 6.944444444 |
Related conversions
Frequently asked questions
How many square inches are in 1 square foot?
1 square foot equals 144 square inches.
What is the formula to convert square feet to square inches?
Use in² = ft² × 144. Multiply the number of square feet by 144 to get square inches. Going the other way, divide by 144 (or multiply by 0.00694444444444).
What is 100 square feet in square inches?
100 square feet is 14,400 square inches.