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Square Feet to Square Kilometers Converter

1 square foot = 0.00000009290304 km². Enter any value to convert square feet (ft²) to square kilometers (km²), or use the table below for common values.

Results

1 ft² =0.00000009290304 km²square feet → square kilometers
1 ft²0.00000009290304 km²
1 km²10,763,910.42 ft²
Formula
km² = ft² × 0.00000009290304
1 ft² in other units
UnitValue
square meters (m²)0.09290304
square kilometers (km²)0.00000009290304
square inches (in²)144
square yards (yd²)0.1111111111
square miles (mi²)0.00000003587006428
acres (ac)0.00002295684114
hectares (ha)0.000009290304

Formula

km² = ft² × 0.00000009290304

Example: 10 ft² = 0.0000009290304 km². To convert the other way, use ft² = km² × 10,763,910.42.

Quick mental estimate: multiply by about 0.000000093.

Square Feet to Square Kilometers conversion table

Square Feet (ft²)Square Kilometers (km²)
1 ft²0.00000009290304 km²
2 ft²0.00000018580608 km²
3 ft²0.00000027870912 km²
4 ft²0.00000037161216 km²
5 ft²0.0000004645152 km²
6 ft²0.00000055741824 km²
7 ft²0.00000065032128 km²
8 ft²0.00000074322432 km²
9 ft²0.00000083612736 km²
10 ft²0.0000009290304 km²
15 ft²0.0000013935456 km²
20 ft²0.0000018580608 km²
25 ft²0.000002322576 km²
30 ft²0.0000027870912 km²
40 ft²0.0000037161216 km²
50 ft²0.000004645152 km²
75 ft²0.000006967728 km²
100 ft²0.000009290304 km²
250 ft²0.00002322576 km²
500 ft²0.00004645152 km²
1,000 ft²0.00009290304 km²

About square feet and square kilometers

The square foot is exactly 0.09290304 m². Homes and offices in the US, UK and Canada are commonly listed in square feet.

The square kilometer equals one million square meters, used for the areas of cities, countries and lakes.

Other Area conversions

Square Kilometers → Square FeetReverse conversionSquare Meters → Square Kilometersm² → km²Square Inches → Square Kilometersin² → km²Square Feet → Square Metersft² → m²Square Feet → Square Inchesft² → in²Square Feet → Square Yardsft² → yd²Square Feet → Square Milesft² → mi²Square Feet → Acresft² → acSquare Feet → Hectaresft² → haSquare Yards → Square Kilometersyd² → km²Square Miles → Square Kilometersmi² → km²Acres → Square Kilometersac → km²Hectares → Square Kilometersha → km²

Frequently asked questions

How do I convert square feet to square kilometers?

Use the formula km² = ft² × 0.00000009290304. For example, 10 ft² = 0.0000009290304 km².

What is 1 square foot in square kilometers?

1 ft² = 0.00000009290304 km².

How do I convert square kilometers back to square feet?

Use ft² = km² × 10,763,910.42. 1 km² = 10,763,910.42 ft².