Convert Square Feet to Square Kilometers

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

SWAP UNITS
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 5 square feet to square kilometers using the formula above.
5 sq ft = (5 × 9.2903E-8) = 4.6452E-7 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. 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 Measurements and Equivalent Square Kilometer Conversions

Common square foot values converted to the equivalent square kilometer value
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
11 sq ft 0.0000010219 sq km
12 sq ft 0.0000011148 sq km
13 sq ft 0.0000012077 sq km
14 sq ft 0.0000013006 sq km
15 sq ft 0.0000013935 sq km
16 sq ft 0.0000014864 sq km
17 sq ft 0.0000015794 sq km
18 sq ft 0.0000016723 sq km
19 sq ft 0.0000017652 sq km
20 sq ft 0.0000018581 sq km
21 sq ft 0.000001951 sq km
22 sq ft 0.0000020439 sq km
23 sq ft 0.0000021368 sq km
24 sq ft 0.0000022297 sq km
25 sq ft 0.0000023226 sq km
26 sq ft 0.0000024155 sq km
27 sq ft 0.0000025084 sq km
28 sq ft 0.0000026013 sq km
29 sq ft 0.0000026942 sq km
30 sq ft 0.0000027871 sq km
31 sq ft 0.00000288 sq km
32 sq ft 0.0000029729 sq km
33 sq ft 0.0000030658 sq km
34 sq ft 0.0000031587 sq km
35 sq ft 0.0000032516 sq km
36 sq ft 0.0000033445 sq km
37 sq ft 0.0000034374 sq km
38 sq ft 0.0000035303 sq km
39 sq ft 0.0000036232 sq km
40 sq ft 0.0000037161 sq km

More Square Foot Area Conversions

US Customary
Convert to Square Miles
1 sq ft is equal to 3.587E-8 square miles
Convert to Acres
1 sq ft is equal to 2.2957E-5 acres
Convert to Square Yards
1 sq ft is equal to 0.111111 square yards
Convert to Square Inches
1 sq ft is equal to 144 square inches
SI Units
Convert to Square Meters
1 sq ft is equal to 0.092903 square meters
Convert to Square Centimeters
1 sq ft is equal to 929.0304 square centimeters
Convert to Square Millimeters
1 sq ft is equal to 92,903 square millimeters
Other Metric Units
Convert to Hectares
1 sq ft is equal to 9.2903E-6 hectares
Convert to Ares
1 sq ft is equal to 0.000929 ares