Convert square inch to square foot
1 in² = 0.006944444444 ft²
1 in² = 0.0069444 ft²
1 in² in every area unit
| microbarn | 6.4516e+30 μb |
| millibarn | 6.4516e+27 mb |
| barn | 6.4516e+24 b |
| square nanometer | 645,160,000,000,000 nm² |
| square micrometer | 645,160,000 μm² |
| circular mil | 1,273,200 cmil |
| thousand circular mils | 1,273.2 kcmil |
| square millimeter | 645.16 mm² |
| square centimeter | 6.4516 cm² |
| square inch | 1 in² |
| square decimeter | 0.064516 dm² |
| square foot | 0.0069444 ft² |
| square yard | 0.0007716 yd² |
| square meter | 0.00064516 m² |
| tsubo | 0.00019516 tsubo |
| square rod | 0.000025508 rd² |
| are | 0.0000064516 a |
| square chain | 0.0000015942 ch² |
| dunam | 6.4516e-07 dunam |
| rood | 6.3769e-07 rood |
| acre | 1.5942e-07 ac |
| hectare | 6.4516e-08 ha |
| square kilometer | 6.4516e-10 km² |
| square mile | 2.4910e-10 mi² |
How the conversion works
Multiply by 0.006944444444 to go from square inch to square foot, or divide by it to go back. Every conversion on this site routes through the SI value (m²) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? square foot to square inch — 1 ft² = 144 in².
square inch to square foot — common values
| 1 in² | 0.0069444444 ft² |
| 2 in² | 0.013888889 ft² |
| 3 in² | 0.020833333 ft² |
| 5 in² | 0.034722222 ft² |
| 10 in² | 0.069444444 ft² |
| 15 in² | 0.10416667 ft² |
| 20 in² | 0.13888889 ft² |
| 25 in² | 0.17361111 ft² |
| 50 in² | 0.34722222 ft² |
| 75 in² | 0.52083333 ft² |
| 100 in² | 0.69444444 ft² |
| 250 in² | 1.7361111 ft² |
| 500 in² | 3.4722222 ft² |
| 1000 in² | 6.9444444 ft² |