Square inches to Square metres Converter
Convert square inch to square metre instantly. Type a value below — the result updates as you type.
When you need to convert square inch to square metre
Area conversions are essential when buying land, ordering flooring, turf or paint, or comparing property listings that quote space in different units across regions.
Typical values: 0.5 in² is about 0.00032258 m², and 100 in² works out to roughly 0.0645 m². Because the ratio is fixed at 0.00064516, you can scale any amount linearly — doubling the square inches doubles the square metres.
Estate agents, builders and gardeners each favour different area units, so a quick conversion keeps quotes and material orders consistent.
How to convert square inch to square metre
One square inch equals 0.00064516 square metres. To convert, multiply the number of square inches by 0.00064516:
square metres = square inches × 0.00064516
For example, 10 square inches × 0.00064516 = 0.0065 square metres.
Square inches to square metres conversion table
| Area (in²) | Square metres (m²) |
|---|---|
| 1 in² | 0.00064516 m² |
| 2 in² | 0.0013 m² |
| 3 in² | 0.0019 m² |
| 5 in² | 0.0032 m² |
| 10 in² | 0.0065 m² |
| 20 in² | 0.0129 m² |
| 50 in² | 0.0323 m² |
| 100 in² | 0.0645 m² |
FAQ
How many square metres are in a square inch?
One square inch = 0.00064516 square metres.
How do I convert square metres back to square inches?
Divide by 0.00064516, or use the square metres to square inches converter.