Convert square foot (ft²) to square inch (in²).
AreaOpen
Square Inch to Square Foot Converter (sq in to sq ft)
Convert square inch (in²) to square foot (ft²).Unit Converter · Area
Quick answer
1 square inch (sq in) is approximately equal to 0.00694444 square feet (sq ft). 1 square foot (sq ft) is equal to 144 square inches (sq in).
To convert sq in to sq ft, multiply the value in square inches by 0.0069444444 (or divide by 144). For example, 10 sq in = 0.06944444 sq ft, and 100 sq in = 0.69444444 sq ft.
Loading chart…
Quick reference — square inch to square foot
More in Area
All Area convertersConvert square inch (in²) to square meter (m²).
AreaOpenConvert square inch (in²) to acre (acre).
AreaOpenConvert square inch (in²) to hectare (ha).
AreaOpenConvert square inch (in²) to square yard (yd²).
AreaOpenConvert square inch (in²) to square centimeter (cm²).
AreaOpenConvert square inch (in²) to square kilometer (km²).
AreaOpenConvert square inch (in²) to square mile (mi²).
AreaOpenConvert square inch (in²) to square millimeter (mm²).
AreaOpen
How to convert square inches to square feet
How many square feet are in a square inch? 1 square inch is about 0.00694444 square feet. This free in² to ft² converter and square inch to square foot calculator gives the answer instantly for any value, and the same conversion is also written as sq in to sq ft.
To convert square inch (in²) to square foot (ft²), multiply the value in square inches by 0.0069444444, or divide it by 144.
ft² = in² × 0.0069444444
- 1
Take the value in square inches
For example, 25 in².
- 2
Multiply by 0.0069444444
25 × 0.0069444444.
- 3
Read the answer in square feet
25 in² = 0.17361111 ft².
Square Inch to Square Foot conversion table
Common values from 1 to 1,000 square inches converted to square feet.
| Square Inch (in²) | Square Foot (ft²) |
|---|---|
| 1 in² | 0.00694444 ft² |
| 2 in² | 0.01388889 ft² |
| 3 in² | 0.02083333 ft² |
| 4 in² | 0.02777778 ft² |
| 5 in² | 0.03472222 ft² |
| 6 in² | 0.04166667 ft² |
| 7 in² | 0.04861111 ft² |
| 8 in² | 0.05555556 ft² |
| 9 in² | 0.0625 ft² |
| 10 in² | 0.06944444 ft² |
| 15 in² | 0.10416667 ft² |
| 20 in² | 0.13888889 ft² |
| 25 in² | 0.17361111 ft² |
| Square Inch (in²) | Square Foot (ft²) |
|---|---|
| 30 in² | 0.20833333 ft² |
| 40 in² | 0.27777778 ft² |
| 50 in² | 0.34722222 ft² |
| 60 in² | 0.41666667 ft² |
| 70 in² | 0.48611111 ft² |
| 75 in² | 0.52083333 ft² |
| 80 in² | 0.55555556 ft² |
| 90 in² | 0.625 ft² |
| 100 in² | 0.69444444 ft² |
| 250 in² | 1.73611111 ft² |
| 500 in² | 3.47222222 ft² |
| 1,000 in² | 6.94444444 ft² |
About square inches and square feet
Square Inch (in²)
A square inch (in²) is a square 1 inch on each side, equal to 6.4516 square centimeters.
Square Foot (ft²)
A square foot (sq ft) is a square 1 foot on each side, equal to 144 square inches or about 0.0929 square meters. It is the usual unit for flat and house areas in India.
in² to ft²: common questions
- How many square feet are in 1 square inch?
- 1 square inch (sq in) is approximately equal to 0.00694444 square feet (sq ft). In short: 1 sq in ≈ 0.00694444 sq ft.
- How do I convert square inches to square feet?
- To convert in² to ft², multiply the value in square inches by 0.0069444444 (or divide by 144). For example, 5 in² = 0.03472222 ft².
- How do I convert square feet to square inches?
- To convert ft² to in², multiply the value in square feet by 144. Or open the Square Foot to Square Inch converter, which does it for you.
- What is 10 in² in ft², and what is 100 in²?
- 10 in² = 0.06944444 ft², and 100 in² = 0.69444444 ft². The table above lists more values from 1 to 1,000.
- Is this in² to ft² converter accurate?
- Yes. It uses the exact conversion factor and shows results to as many as 8 decimal places, so you can rely on it for study, work and everyday measuring.
Customize this calculator
Pick a look, copy the code, and this Square Inch to Square Foot calculator — with its inputs and results — runs on your own website.
Theme color
Match your brand's colors
Corner style
Sharp, soft or fully rounded
Widget width
Compact, standard or full width
Live preview
Full widthThe same inputs, result and chart as the calculator above, styled with your choices.
yoursite.com