Square inches to Square feet converter

To convert square inches to square feet, enter the value in the first field. The result in square feet is calculated automatically using the exact conversion factor.

1 in² ≈ 0.00694444444444 ft²
1 ft² = 144 in²

Formula: ft² ≈ in² × 0.00694444444444
in² = ft² × 144

Definitions: 1 in² = 0.00064516 m²; 1 ft² = 144 in²

The square inch (in²) is the area of a square 1 inch on each side. It is used in the United States for small surfaces and in engineering, where pressure in psi means pounds-force per square inch.

The square foot (ft²) is 144 square inches. It is the standard unit for home and office floor space in the United States and is also common in property listings in the United Kingdom, Canada and India.

See the conversion table with commonly used values, handy for quick reference or study.