Convert square feet (ft²) to square inches (in²).
Edit either value. Decimals and scientific notation supported.
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1 ft² ≈ 144 in²
Precision changes displayed rounding, not calculation accuracy.
in² = ft² × 144in² = ft² × 144
Multiply the ft² reading by 144.
1 ft² ≈ 144 in²
1 × 144 ≈ 144
100 ft² ≈ 14400 in²
100 × 144 ≈ 14400
Area factors scale with the square of the length factor. For example, 1 ft = 0.3048 m gives 1 ft² = 0.3048² m² = 0.09290304 m².
Fixed reference · Square foot to Square inch
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
| Square foot (ft²) | Square inch (in²) |
|---|---|
| 0 | 0 |
| 0.1 | 14.4 |
| 0.5 | 72 |
| 1 | 144 |
| 2 | 288 |
| 5 | 720 |
| 10 | 1440 |
| 25 | 3600 |
| 50 | 7200 |
| 100 | 14400 |
| 1000 | 144000 |
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