Convert Inch squared to Foot squared
Convert Inch squared (in²) to Foot squared (ft²) instantly and accurately.
Conversion Formula
ft² = in² × 0.006944444444
About Inch squared
The square inch (in²) equals (0.0254 m)² = 6.4516 × 10⁻⁴ m² ≈ 6.54 × 10¹¹ D. An imperial area unit included for unit-conversion completeness; it appears in some US oil-country tubular goods and industrial filter-media specifications where flow cross-sections are stated in square inches. 1 in² ≈ 6.452 cm² = 6.4516 × 10⁻⁴ m².
About Foot squared
The square foot (ft²) equals (0.3048 m)² = 9.290 304 × 10⁻² m² ≈ 9.41 × 10¹³ D. An imperial area unit included for unit-conversion completeness; it occasionally appears in US geotechnical reports where flow cross-sections are expressed in square feet. 1 ft² = 144 in² = 9.290 304 × 10⁻² m².
Quick Reference Table
| Inch squared (in²) | Foot squared (ft²) |
|---|---|
| 1 in² | 0.00694444 ft² |
| 2 in² | 0.0138889 ft² |
| 5 in² | 0.0347222 ft² |
| 10 in² | 0.0694444 ft² |
| 25 in² | 0.173611 ft² |
| 50 in² | 0.347222 ft² |
| 100 in² | 0.694444 ft² |