QConvert
Square Foot to Square Inch Converter
Convert Square Foot to Square Inch instantly — live results with exact conversion factors.
Answer
1 square foot = 144 square inches. To convert ft² to in², multiply by 144.
Quick Reference Table
| Square Foot (ft²) | Square Inch (in²) |
|---|---|
| 1 | 144 |
| 2 | 288 |
| 5 | 720 |
| 10 | 1440 |
| 20 | 2880 |
| 50 | 7200 |
| 100 | 14400 |
| 250 | 36000 |
| 500 | 72000 |
| 1000 | 144000 |
Formula
Convert Square Foot (ft²) to Square Inch (in²) using the relationship:
in² = ft² × 144
How to Convert
- Take the value in square feet (ft²).
- Multiply it by 144 (the conversion factor from ft² to in²).
- The result is the equivalent value in square inches (in²).
- Example: 1 ft² = 144 in².
Reverse Conversion
Need it the other direction? Square Inch to Square Foot conversion.
All Area Conversions
See the full list of Area conversions.
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FAQ
▸ How many square inches are in 1 square foot?
1 Square Foot equals 144 square inches. Multiply by 144 to convert ft² to in².
▸ What is the formula to convert square foot to square inch?
Multiply the value in square feet by 144 to get square inches. Formula: in² = ft² × 144.
▸ How do I convert square feet to square inches easily?
Enter your value in the converter at the top of this page — the square inches result updates live as you type. You can also multiply by 144 directly.