Convert square feet to square inches
Instantly convert square feet to square inches using our free online calculator. See the formula and a full reference table below.
square inches
1 square foot = 144 square inches
Formula:
square feet × 144 = square inchesSquare foot → Square inch reference table
| square feet | square inches |
|---|---|
| 1 square foot | 144 square inches |
| 2 square feet | 288 square inches |
| 5 square feet | 720 square inches |
| 10 square feet | 1440 square inches |
| 25 square feet | 3600 square inches |
| 50 square feet | 7200 square inches |
| 100 square feet | 14400 square inches |
| 250 square feet | 36000 square inches |
| 500 square feet | 72000 square inches |
| 1000 square feet | 144000 square inches |
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Frequently asked questions
How many square inches are in 1 square foot?
1 square foot equals 144 square inches.
What is the formula to convert square feet to square inches?
Multiply the number of square feet by 144 to get the equivalent in square inches.
Is this converter accurate?
Yes. All conversions use internationally recognized conversion factors with up to 6 decimal places of precision.