Square Foot (ft²) – The Practical Imperial Unit for Area

The square foot (ft²) is a common unit of area in the imperial system, widely used in the United States for measuring residential and commercial spaces. It is defined as the area of a square with each side measuring one foot.

History & Background:The square foot has been used for centuries in countries following the imperial system. It remains a practical unit for everyday applications such as real estate, interior design, and construction.

Applications:Square feet are used in estimating floor area, planning renovations, and determining property values.

Conversion Table

UnitConversion FactorEquivalent of 1 ft²
Square Foot (ft²)1 ft² = 1 ft²1
Square Meter (m²)1 ft² ≈ 0.092903 m²0.092903
Square Yard (yd²)1 ft² ≈ 0.111111 yd²0.111111
Square Kilometer (km²)1 ft² ≈ 9.2903e-7 km²9.2903e-7
Square Mile1 ft² ≈ 3.587e-8 square miles3.587e-8
Acre1 ft² ≈ 0.0000229568 acres0.0000229568
Hectare1 ft² ≈ 0.0000092903 hectares0.0000092903
Square Inch (in²)1 ft² = 144 in²144

This table offers a detailed conversion reference, making it easier to convert square feet to other units for accurate project planning and estimation.