Convert Square Feet to Square Kilometers

Enter the area in square feet below to get the value converted to square kilometers.

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Results in Square Kilometers:
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1 sq ft = 9.2903E-8 sq km

How to Convert Square Feet to Square Kilometers

Calculators can be used to convert measurements from one unit to another

To convert a square foot measurement to a square kilometer measurement, multiply the area by the conversion ratio. One square foot is equal to 9.2903E-8 square kilometers, so use this simple formula to convert:

square kilometers = square feet × 9.2903E-8

The area in square kilometers is equal to the square feet multiplied by 9.2903E-8.

For example, here's how to convert 50,000,000 square feet to square kilometers using the formula above.
50,000,000 sq ft = (50,000,000 × 9.2903E-8) = 4.645152 sq km

Square feet and square kilometers are both units used to measure area. Keep reading to learn more about each unit of measure.

Square Feet

One square foot is equal to the area of a square with sides that are 1 foot in length.[1] One square foot is roughly equal to 144 square inches.

The square foot is a US customary and imperial unit of area. A square foot is sometimes also referred to as a square ft. Square feet can be abbreviated as sq ft, and are also sometimes abbreviated as ft². For example, 1 square foot can be written as 1 sq ft or 1 ft².

Try our square footage calculator to calculate the area of a space.

Square Kilometers

One square kilometer is equal to the area of a square with sides that are 1 kilometer in length.

The square kilometer, or square kilometre, is a multiple of the square meter, which is the SI derived unit for area. In the metric system, "kilo" is the prefix for 103. A square kilometer is sometimes also referred to as a square km. Square kilometers can be abbreviated as sq km, and are also sometimes abbreviated as km². For example, 1 square kilometer can be written as 1 sq km or 1 km².

Square Foot to Square Kilometer Conversion Table

Square foot measurements converted to square kilometers
Square Feet Square Kilometers
1 sq ft 0.000000092903 sq km
2 sq ft 0.00000018581 sq km
3 sq ft 0.00000027871 sq km
4 sq ft 0.00000037161 sq km
5 sq ft 0.00000046452 sq km
6 sq ft 0.00000055742 sq km
7 sq ft 0.00000065032 sq km
8 sq ft 0.00000074322 sq km
9 sq ft 0.00000083613 sq km
10 sq ft 0.00000092903 sq km
100 sq ft 0.0000092903 sq km
1,000 sq ft 0.000092903 sq km
10,000 sq ft 0.000929 sq km
100,000 sq ft 0.00929 sq km
1,000,000 sq ft 0.092903 sq km
10,000,000 sq ft 0.92903 sq km
100,000,000 sq ft 9.2903 sq km

References

  1. Merriam-Webster, square foot, https://www.merriam-webster.com/dictionary/square%20foot