Square feet (ft²) to Square kilometers (km²) Conversion
Square feet
The square foot is a unit of area equal to exactly 0.09290304 square metres (the square of 0.3048 m). It is the primary unit for measuring floor area and property size in the United States and United Kingdom, and appears in real estate listings, construction blueprints, and rental agreements. Average apartment sizes in the US are commonly described in square feet, where a studio apartment might be 400–600 ft².
Square kilometers
The square kilometre is a unit of area equal to one million square metres (10⁶ m²) and is the standard unit for expressing the surface areas of countries, cities, lakes, forests, and other large geographic features. Russia, the world's largest country, covers approximately 17.1 million km². The surface area of Earth is approximately 510.1 million km², of which about 70.8% is ocean.
| Square feet (ft²) | Square kilometers (km²) |
|---|---|
| 0.1 ft² | 9.290304E-9 km² |
| 1 ft² | 9.290304E-8 km² |
| 2 ft² | 1.8580608E-7 km² |
| 3 ft² | 2.7870912E-7 km² |
| 5 ft² | 4.645152E-7 km² |
| 10 ft² | 9.290304E-7 km² |
| 20 ft² | 1.8580608E-6 km² |
| 30 ft² | 2.7870912E-6 km² |
| 50 ft² | 4.645152E-6 km² |
| 100 ft² | 9.290304E-6 km² |
| 1000 ft² | 9.290304E-5 km² |