Convert square feet to square kilometers
1 ft² = 9.2903 × 10^-8 km². Change the amount below, or read the formula and the reference table further down.
1 square foot equals
square kilometers
1 ft² = 9.2903 × 10^-8 km²
The formula
Square feet and square kilometers both measure area from the same zero, so a single multiplier does the job.
km² = ft² × 9.2903 × 10^-8
Going the other way? Convert square kilometers to square feet.
Square feet to square kilometers table
Common values, rounded for reading.
| Square feet (ft²) | Square kilometers (km²) |
|---|---|
| 1 | 9.2903 × 10^-8 |
| 2 | 1.8581 × 10^-7 |
| 3 | 2.7871 × 10^-7 |
| 4 | 3.7161 × 10^-7 |
| 5 | 4.6452 × 10^-7 |
| 6 | 5.5742 × 10^-7 |
| 7 | 6.5032 × 10^-7 |
| 8 | 7.4322 × 10^-7 |
| 9 | 8.3613 × 10^-7 |
| 10 | 9.2903 × 10^-7 |
| 15 | 0.000001 |
| 20 | 0.000002 |
| 25 | 0.000002 |
| 30 | 0.000003 |
| 40 | 0.000004 |
| 50 | 0.000005 |
| 75 | 0.000007 |
| 100 | 0.000009 |
| 250 | 0.000023 |
| 500 | 0.000046 |
| 1,000 | 0.000093 |
Questions people ask
- How many square kilometers are in a square foot?
- One square foot equals 9.2903 × 10^-8 square kilometers.
- How do I convert square feet to square kilometers by hand?
- Multiply the number of square feet by 9.2903 × 10^-8. For a rough check, 9.2903 × 10^-8 is close enough for most everyday use.
- What is 1 square foot in square kilometers?
- 1 square foot is 9.2903 × 10^-8 square kilometers.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.