Square feet to Square inches converter

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

1 ft² = 144 in²
1 in² ≈ 0.00694444444444 ft²

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

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

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.

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.

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