# XinY Units - Convert area units from Square Feet

## For all your unit conversions. Convert from x to y, from this to that.

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### Square Feet

The square foot is an imperial unit and U.S. customary unit of area, used mainly in the United States. It is defined as the area of a square with sides of 1 foot. A standard tennis court is 78 feet x 36 feet, which means it is 2,808 square feet.