Convert Square Feet (ft²) to Square Inches (in²)
Enter a value below to convert Square Feet (ft²) to Square Inches (in²).
Conversion:
1 Square Feet (ft²) = 144 Square Inches (in²)
How to Convert Square Feet (ft²) to Square Inches (in²)
1 ft2 = 144 in2
1 in2 = 0.0069444444444 ft2
Example: convert 15 Square Feet (ft²) to Square Inches (in²):
25 ft2 = 3600 in2
Square Feet (ft²) to Square Inches (in²) Conversion Table
| Square Feet (ft²) | Square Inches (in²) |
|---|---|
| 0.01 ft2 | 1.44 in2 |
| 0.1 ft2 | 14.4 in2 |
| 1 ft2 | 144 in2 |
| 2 ft2 | 288 in2 |
| 3 ft2 | 432 in2 |
| 5 ft2 | 720 in2 |
| 10 ft2 | 1440 in2 |
| 20 ft2 | 2880 in2 |
| 50 ft2 | 7200 in2 |
| 100 ft2 | 14400 in2 |
| 1000 ft2 | 144000 in2 |
Square Feet (ft²)
Definition
A square foot (ft²) is an imperial unit of area equal to the area of a square with sides of 1 foot (12 inches). It equals approximately 0.0929 square meters.
History
The square foot has been used since ancient civilizations for measuring floor space and land. The foot was historically based on the length of a human foot, and was standardized in the imperial and US customary systems.
Current use
Square feet are the standard unit for measuring real estate floor space in the United States, Canada, India, and parts of the Middle East. It is also used in construction, interior design, and property valuation.
Square Inches (in²)
Definition
A square inch (in²) is an imperial unit of area equal to the area of a square with sides of 1 inch. It equals approximately 6.4516 square centimeters.
History
The square inch evolved from the British imperial system. The inch itself was historically defined as the width of a man's thumb, and was standardized to exactly 25.4 mm in 1959 by international agreement.
Current use
Square inches are used in the United States and the United Kingdom for measuring the area of small objects, cross-sections, screen sizes, pressure specifications (PSI), and manufacturing tolerances.