Convert Square Feet to Square Kilometers
ft² to km² · area conversion
What are square feet and square kilometers?
A square foot is a square 12 inches on each side (about 0.0929 m²), standard for US floor area. A square kilometer is one million square meters, used for large regions and cities. For scale: a tennis court is about 261 m² (2,808 ft²), and a soccer pitch is roughly 0.7 hectares.
How to convert square feet to square kilometers
1 ft² = 9.2903e-8 km². To convert, multiply the number of square feet by 9.2903e-8. For example, 5 ft² = 4.6452e-7 km², and 20 ft² = 0.00000185806 km². To go the other way, multiply square kilometers by 10,763,900 (since 1 km² = 10,763,900 ft²).
Square Feet to Square Kilometers conversion table
| Square Feet (ft²) | Square Kilometers (km²) |
|---|---|
| 1 | 9.2903e-8 |
| 5 | 4.6452e-7 |
| 10 | 9.2903e-7 |
| 25 | 0.00000232258 |
| 50 | 0.00000464515 |
| 100 | 0.0000092903 |
| 1,000 | 0.000092903 |
FAQ
What is 1 ft² in km²?
1 ft² = 9.2903e-8 km². To convert any amount, multiply the number of square feet by 9.2903e-8.
How do I convert square kilometers back to square feet?
Go the other way: 1 km² = 10,763,900 ft², so multiply square kilometers by 10,763,900 to get square feet.
Is a square feet bigger than a square kilometer?
No — 1 ft² is the smaller unit, equal to 9.2903e-8 km² (it takes 10,763,900 ft² to make one km²).
Are these area conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.