Convert Square Feet to Square Inches
1 square foot = 144 square inches. Type any value below to convert in either direction — the calculation happens in your browser.
Square Feet to Square Inches formula
Multiply the number of square feet by 144 to get square inches.
square inches = square feet × 144To go the other way: divide the number of square inches by 144, or multiply by 0.006944444.
square feet = square inches ÷ 144Square Feet to Square Inches conversion table
| Square Feet | Square Inches |
|---|---|
| 1 ft² | 144 in² |
| 2 ft² | 288 in² |
| 3 ft² | 432 in² |
| 4 ft² | 576 in² |
| 5 ft² | 720 in² |
| 6 ft² | 864 in² |
| 7 ft² | 1,008 in² |
| 8 ft² | 1,152 in² |
| 9 ft² | 1,296 in² |
| 10 ft² | 1,440 in² |
| 15 ft² | 2,160 in² |
| 20 ft² | 2,880 in² |
| 25 ft² | 3,600 in² |
| 30 ft² | 4,320 in² |
| 40 ft² | 5,760 in² |
| 50 ft² | 7,200 in² |
| 75 ft² | 10,800 in² |
| 100 ft² | 14,400 in² |
| 250 ft² | 36,000 in² |
| 500 ft² | 72,000 in² |
| 1,000 ft² | 144,000 in² |
Square Inches to Square Feet conversion table
| Square Inches | Square Feet |
|---|---|
| 1 in² | 0.006944444 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 |
About the square foot
A square foot is about 0.0929 square metres and is the standard unit for US real-estate floor area.
About the square inch
A square inch is exactly 6.4516 square centimetres, used for small components and print areas.
Frequently asked questions
How many square inches are in a square foot?
There are 144 square inches in one square foot.
How many square feet are in a square inch?
There are 0.006944444 square feet in one square inch.
Is this conversion exact?
The ratio between the square foot and the square inch is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 square feet in square inches?
10 square feet equals 1,440 square inches.
Related area conversions
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- Square Feet to Square Miles
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- Square Feet to Hectares
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- Hectares to Square Inches