Square Inch to Square Foot Conversion
Convert square inch to square foot with precision. Enter values and get instant conversions.
Area Converter
1 Square Inch = 0 Square Foot
Common Conversions
About Square Inch to Square Foot Conversion
Converting from Square Inch to Square Foot is a common area conversion.
This online converter allows you to easily convert between square inch and square foot, providing instant results with high precision.
Square Inch
Definition: A square inch (symbol: in²) is an imperial and US customary unit of area equal to a square with 1 inch sides. One square inch equals exactly 6.4516 square centimeters or 0.00694 square feet.
History: Originated from the Roman 'uncia' (1/12 of a foot). The international inch definition of 1959 (exactly 25.4 mm) standardized the square inch in metric terms.
Current use: Used in engineering (stress calculations), manufacturing (material specifications), and electronics (chip sizes) in the US. Common for measuring small areas where imperial units are preferred.
Square Foot
Definition: A square foot (symbol: ft²) is an imperial and US customary unit of area equal to a square with 1 foot (12 inches) sides. One square foot equals exactly 0.09290304 square meters or 144 square inches.
History: Dates back to ancient measurement systems based on human dimensions. The international foot definition of 1959 (exactly 0.3048 meters) standardized the square foot in metric terms.
Current use: The primary unit for real estate measurements in the United States (home sizes, office spaces). Also used in construction (material estimates) and architecture in countries using imperial units. The UK uses square meters officially but square feet persists in informal contexts.
Details
- From: Square Inch
- To: Square Foot
- Formula: 1 Square Inch = 0.0069444444 Square Foot
- Example: 25 Square Inch = 0.1736111111 Square Foot
Square Inch to Square Foot Conversion Table
| Square Inch | Square Foot |
|---|---|
| 0.01 | 0.0000694444 |
| 0.1 | 0.0006944444 |
| 1 | 0.0069444444 |
| 2 | 0.0138888889 |
| 3 | 0.0208333333 |
| 5 | 0.0347222222 |
| 10 | 0.0694444444 |
| 20 | 0.1388888889 |
| 50 | 0.3472222222 |
| 100 | 0.6944444444 |
| 1000 | 6.9444444444 |