Square Inches to Square Feet
Convert in² to ft² quickly with this free online calculator. The page explains the conversion rule, gives practical examples and provides a quick reference table.
144 square inches equal 1 square foot.
How to use the Square Inches to Square Feet
- Enter the number you want to convert.
- Confirm the source unit shown beside the input.
- Choose decimal precision if you need more or less detail.
- Read the converted result.
- Copy the result when you need to use it elsewhere.
How the conversion works
144 square inches equal 1 square foot.
For a simple fixed-factor conversion, the calculator multiplies the entered value by the stated factor. Temperature scales and certain specialized tools use their specific mathematical relationship instead.
Common in² to ft² conversions
| in² | ft² |
|---|---|
| 1 in² | 0.006944 ft² |
| 2 in² | 0.013889 ft² |
| 5 in² | 0.034722 ft² |
| 10 in² | 0.069444 ft² |
| 20 in² | 0.138889 ft² |
| 50 in² | 0.347222 ft² |
Example
For example, entering 1 in² gives approximately 0.006944 ft² using the rule above. Change the input to test your own value.
Frequently asked questions
Accuracy note: This calculator is a practical reference. For regulated, safety-critical or specialized work, verify the result against the applicable standard.
Page reviewed: August 24, 2026.