square foot to square inch
Live square foot (ft²) to square inch (in²) converter. Plus a 10-value reference table and FAQs.
Conversion table
Ten sample values from square foot to square inch. Use the converter above for arbitrary values.
| square foot (ft²) | → | square inch (in²) |
|---|---|---|
| 0.001 ft² | → | 0.144 in² |
| 0.01 ft² | → | 1.44 in² |
| 0.1 ft² | → | 14.4 in² |
| 0.5 ft² | → | 72 in² |
| 1 ft² | → | 144 in² |
| 2 ft² | → | 288 in² |
| 5 ft² | → | 720 in² |
| 10 ft² | → | 1,440 in² |
| 100 ft² | → | 14,400 in² |
| 1,000 ft² | → | 144,000 in² |
About the square foot
US floor area, real estate.
About the square inch
US small surface area.
How square foot to square inch conversion works
Both units belong to Area. Unitbox first expresses the input in the category reference unit (m²), then expresses that same quantity in square inch.
The right unit depends on the convention used by your industry, country, instrument, or source document.
Unit definitions and conversion factors are maintained in the Unitbox methodology. Last reviewed with the current conversion dataset.
Frequently asked questions
Frequently Asked Questions
How do I convert square foot to square inch?
Multiply the square foot value by 144 to get it in square inch. For example, 10 ft² = 1,440 in².
What is 1 ft² in in²?
1 ft² = 144 in².
What is 100 ft² in in²?
100 ft² = 14,400 in².
What is the formula?
Linear: multiply by 144 (the unit factor ratio).
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