Convert square foot to square kilometer
Please provide values below to convert square foot [ft^2] to square kilometer [km^2], or Convert square kilometer to square foot.
How to Convert Square Foot to Square Kilometer
1 ft^2 = 9.290304e-08 km^2
Example: convert 15 ft^2 to km^2:
15 ft^2 = 15 × 9.290304e-08 km^2 = 1.3935456e-06 km^2
Square Foot to Square Kilometer Conversion Table
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Square Foot
A square foot is a unit of area measurement equal to the area of a square with sides of one foot in length.
History/Origin
The square foot has been used historically in the imperial and US customary systems for measuring areas, especially in real estate and construction, dating back to the adoption of the imperial system in the UK and its influence in the US.
Current Use
Today, the square foot is widely used in real estate, architecture, and interior design in the United States and other countries that employ imperial units to measure property sizes, building areas, and land plots.
Square Kilometer
A square kilometer is a unit of area equal to the area of a square with sides measuring one kilometer each.
History/Origin
The square kilometer has been used as a standard unit of area measurement in the metric system since its adoption, primarily for measuring large land areas such as countries and regions.
Current Use
It is commonly used in geography, urban planning, and environmental studies to quantify land and area sizes, especially in contexts requiring large-scale measurements.