Square inches to Square metres Converter
Convert square inches (sq in) to square metres (m²) instantly. Area conversions are everyday maths in Singapore property: HDB flats are listed in square metres while condo listings and PSF prices use square feet.
Result
- Square metres
- 0.000645 m²
How to use the square inches to square metres converter
- Enter the square inches (sq in).
- The results update as you type, or press Calculate.
- Read the square metres first, then the supporting figures below it.
Formula
Square metres = square inches × 0.00064516
Worked example
For example, with these inputs:
- Square inches (sq in): 1
the calculator returns:
- Square metres: 0.000645 m²
Square inches to Square metres table
| Square inches | Square metres |
|---|---|
| 1 sq in | 0.000645 m² |
| 2 sq in | 0.00129 m² |
| 5 sq in | 0.003226 m² |
| 10 sq in | 0.006452 m² |
| 20 sq in | 0.012903 m² |
| 25 sq in | 0.016129 m² |
| 50 sq in | 0.032258 m² |
| 100 sq in | 0.064516 m² |
| 250 sq in | 0.16129 m² |
| 500 sq in | 0.32258 m² |
| 1,000 sq in | 0.64516 m² |
About this conversion
Area conversions are everyday maths in Singapore property: HDB flats are listed in square metres while condo listings and PSF prices use square feet.
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
Frequently asked questions
How many square metres are in one square inche?
1 sq in = 0.000645 m².
How do I convert sq in to m²?
Square metres = square inches × 0.00064516.