In 1 square feet there are 9.29030e-8 square kilometer. Meanwhile in 1 square kilometer there are 10,763,910.41671 square feet. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Square kilometer to Square feet calculator above to convert any number.
* Values rounded to 6 decimal places for readability
To convert square feet to square kilometers (sq ft to sq km), use this direct conversion:
You can also convert in two quick steps:
Quick check: 1 km² = 10,763,910.4167 ft², so square kilometers are much smaller than square feet.
To convert square feet (sq ft) to square kilometers (sq km), multiply the square-foot value by 0.00000009290304.
Formula:
sq km = sq ft × 0.00000009290304
1 sq ft = 0.00000009290304 sq km
That’s 9.290304 × 10⁻⁸ square kilometers.
1 sq km = 10,763,910.4167097 sq ft
Square kilometers are much larger, so the number in square feet looks big.
A quick estimate uses a rounded factor.
Estimates work well for rough comparisons, not for permits or surveys.
Square kilometers cover a huge area. One kilometer is 3,280.84 feet, and area scales by squaring that length. That’s why a small number of square kilometers equals many square feet.
0.01 sq km is one-hundredth of a square kilometer.
0.01 sq km = 107,639.104167 sq ft (about 107,639.10 sq ft)
Use the exact factor and keep enough decimal places.
Example:
250,000 sq ft × 0.00000009290304 = 0.02322576 sq km
Multiply square kilometers by 10,763,910.4167097 to get square feet.
Formula:
sq ft = sq km × 10,763,910.4167097
Example:
0.5 sq km × 10,763,910.4167097 = 5,381,955.20835485 sq ft
10,000 sq ft × 0.00000009290304 = 0.0009290304 sq km
That’s just under one-thousandth of a square kilometer.
Both measure area, but they fit different use cases.
The unit choice doesn’t change the real area, only how it’s expressed.
Yes, rounding can matter, especially for large areas or legal documents.
Common errors include:
Area conversions always need squared units.
The Calculate Box tool to convert square feet to square kilometer uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a square feet value in the box and have it instantly converted to square kilometer.