Square inch to Square foot Converter
Type a value — the answer appears instantly. 1 in² = 0.00694444 ft².
Reviewed by the OmniCalc teamMethod verified 2026-07-01
0.00694444 square feet
= 0.00064516 m²= 0.0000001594 ac
equals 0.00694444 square feetFormula: ft² = in² × 0.0069444444
Square inch to Square foot formula
ft² = in² × 0.0069444444
Convert 5 square inches to square feet
- Start with 5 square inches.
- Multiply by the conversion factor: 5 × 0.00694444 = 0.0347222.
- So 5 in² = 0.0347222 ft².
Square inch to Square foot conversion table
| Square inches (in²) | Square feet (ft²) |
|---|---|
| 0.01 in² | 0.0000694444 ft² |
| 0.1 in² | 0.000694444 ft² |
| 0.25 in² | 0.00173611 ft² |
| 0.5 in² | 0.00347222 ft² |
| 1 in² | 0.00694444 ft² |
| 2 in² | 0.0138889 ft² |
| 3 in² | 0.0208333 ft² |
| 4 in² | 0.0277778 ft² |
| 5 in² | 0.0347222 ft² |
| 6 in² | 0.0416667 ft² |
| 7 in² | 0.0486111 ft² |
| 8 in² | 0.0555556 ft² |
| 9 in² | 0.0625 ft² |
| 10 in² | 0.0694444 ft² |
| 15 in² | 0.104167 ft² |
| 20 in² | 0.138889 ft² |
| 25 in² | 0.173611 ft² |
| 30 in² | 0.208333 ft² |
| 40 in² | 0.277778 ft² |
| 50 in² | 0.347222 ft² |
| 75 in² | 0.520833 ft² |
| 100 in² | 0.694444 ft² |
| 250 in² | 1.73611 ft² |
| 500 in² | 3.47222 ft² |
| 1,000 in² | 6.94444 ft² |
| 5,000 in² | 34.7222 ft² |
| 10,000 in² | 69.4444 ft² |
Unit definitions
What is a square inch?
The square inch is the area of a one-inch square, exactly 6.4516 square centimetres. It is used in the United States for pressures (pounds per square inch), print, and small surfaces. There are 144 square inches in a square foot.
What is a square foot?
The square foot is the area of a one-foot square, exactly 0.09290304 square metres. It is the dominant unit for real estate, floor plans, and rent in the United States. One square metre is about 10.76 square feet.
Frequently asked questions
How many square feet are in one square inch?
One square inch equals 0.00694444 square feet (1 in² = 0.00694444 ft²).
How do I convert square inches to square feet?
Multiply the value in square inches by 0.00694444. For example, 10 in² × 0.00694444 = 0.0694444 ft².
Which is bigger — a square inch or a square foot?
A square foot is bigger: one square foot contains 144 square inches.
Is this square inch to square foot converter free?
Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.
Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.