Square inches to Square feet Converter
Convert square inches (in²) to square feet (ft²) instantly. Type a value above and the result updates while you type. 1 square inch equals 0.006944 square feet.
Result updates as you type. Values are calculated locally in your browser — nothing is sent to a server.
The formula
1 square inch = 0.006944 square feet
Multiply the square inches value by 0.006944 to get square feet. Or divide by 144 to go the other way.
Square inches to square feet conversion table
| in² | ft² |
|---|---|
| 1 | 0.006944 |
| 2 | 0.013889 |
| 3 | 0.020833 |
| 4 | 0.027778 |
| 5 | 0.034722 |
| 6 | 0.041667 |
| 7 | 0.048611 |
| 8 | 0.055556 |
| 9 | 0.0625 |
| 10 | 0.069444 |
| 15 | 0.104167 |
| 20 | 0.138889 |
| 25 | 0.173611 |
| 50 | 0.347222 |
| 75 | 0.520833 |
| 100 | 0.694444 |
Worked examples
- 5 in² × 0.006944 = 0.034722 ft²
- 30 in² × 0.006944 = 0.208333 ft²
- 165 in² × 0.006944 = 1.14583 ft²
Conversion factors follow the exact international definitions (SI/BIPM; imperial units per the 1959 International Yard and Pound Agreement, maintained by NIST). NIST unit conversion reference
Factors last verified August 2026 · Built by Jeffrey Tepper.
Frequently asked questions
How many square feet are in 1 square inch?
1 square inch equals 0.006944 square feet (in² → ft²).
How do you convert square inches to square feet?
Multiply the number of square inches by 0.006944. For example: 10 in² × 0.006944 = 0.069444 ft².
What is 50 in² in ft²?
50 in² equals 0.347222 ft².
Which is bigger: 1 square inch or 1 square foot?
1 square foot is bigger: 1 square inch is only 0.006944 square feet.