ft² to km²
39 unitsResult9.290304e-8
9.290304e-8km²
1 ft² × 9.290304e-8 = 9.290304e-8 km²
Convert Square foot to Square kilometer (ft² to km²)
1 square foot = 9.290304e-8 square kilometers. Convert square foots to square kilometers instantly, with the exact factor, the formula and a reference table of common values.
Formula
square kilometers = square foots × 9.290304e-8
ft² to km² conversion table
| ft² | km² |
|---|---|
| 1 ft² | 9.290304e-8 km² |
| 2 ft² | 1.858061e-7 km² |
| 3 ft² | 2.787091e-7 km² |
| 5 ft² | 4.645152e-7 km² |
| 10 ft² | 9.290304e-7 km² |
| 20 ft² | 0.0000018580608 km² |
| 50 ft² | 0.000004645152 km² |
| 100 ft² | 0.000009290304 km² |
| 250 ft² | 0.00002322576 km² |
| 500 ft² | 0.00004645152 km² |
| 1000 ft² | 0.00009290304 km² |
What is a square foot?
A square foot is a square one foot on each side: 0.09290304 square meters, or 144 square inches.
It is the standard unit of American real estate. Homes, apartments and offices in the US are advertised by their floor area in square feet, and a comfortable two-bedroom apartment might be around 900 of them.
In writing, the square foot is usually shortened to "ft²". One square foot is 0.09290304 square meters, and that ratio is what every number on this page is built from.