Convert Square Feet to Square Inches
1 ft² = 144 in²
Conversion Table
| square feet (ft²) | square inches (in²) |
|---|---|
| 0.5 | 72 |
| 1 | 144 |
| 2 | 288 |
| 5 | 720 |
| 10 | 1440 |
| 25 | 3600 |
| 50 | 7200 |
| 100 | 14399.99 |
| 250 | 35999.98 |
| 500 | 71999.97 |
| 1000 | 143999.94 |
How to Convert square feet to square inches
To convert square feet to square inches, multiply the value by the conversion factor:
For example: 10 ft² = 1440 in²
About square feet and square inches
The Conversion Formula
To convert square feet to square inches, multiply the value by the conversion factor: 1 ft² = 144 in². For a worked example, suppose you need to convert 25 ft² to square inches: 25 × 144 = 3600 in². To convert in the opposite direction, divide by 144, or equivalently multiply by 0.00694445.
About square feet
The square foot (sq ft) is the defining unit of American real estate. Equal to 144 square inches, it dates back to medieval English measurement. While the world uses square meters, the US (and partially the UK/Canada) relies on square feet to define the size of homes, offices, and retail spaces. It is the unit that determines property value in the US market. square feet are commonly used in Home sizes (US/Canada), Office leasing, Retail store layout, and Painting estimates, Gardening plots.
A typical bedroom is about 100-150 square feet.
About square inches
The square inch is the smallest common imperial area unit. It is primarily used in engineering and manufacturing in the US. It also forms the basis for the pressure unit 'psi' (pounds per square inch). In the digital age, it appears in calculations for screen pixel density (pixels per inch) and print resolution. square inches are commonly used in Pistons and engine cylinders, Pressure calculations, Small art prints, and Electronic displays, Stamp collecting (US).
A standard post-it note is 9 square inches.
When Would You Convert square feet to square inches?
Converting between square feet and square inches is one of the most common area conversions. You might need this conversion when working with international specifications, following instructions written for a different measurement system, or comparing values across different standards. Having the conversion factor (1 ft² = 144 in²) memorized or bookmarked can save time in professional and everyday contexts alike.