The square inch (in²) is commonly used in the United States for small surface measurements. A standard post-it note is about 6 in², while a sheet of letter-sized paper is 93.5 in². This unit is prevalent in printing, crafts, and engineering drawings. The are (100 m²) is primarily used in European land measurement. A small urban garden might be 2-5 ares, while a modest house plot could be 10 ares. Though less common today, it still appears in some property documents and agricultural contexts.
To convert between Square Inch (in²) and Are (a), use the following formulas:
1 Square Inch (in²) = 0.0000064516 Are (a)
1 Are (a) = 155000.31000062 Square Inch (in²)
1 in² = 1 * 0.0000064516 a = 0.0000064516 a
10 in² = 10 * 0.0000064516 a = 0.000064516 a
50 in² = 50 * 0.0000064516 a = 0.00032258 a
100 in² = 100 * 0.0000064516 a = 0.00064516 a
500 in² = 500 * 0.0000064516 a = 0.0032258 a
| Square Inch (in²) | Are (a) |
|---|---|
| 1 in² | 0.0000064516 a |
| 10 in² | 0.000064516 a |
| 100 in² | 0.00064516 a |
| 500 in² | 0.0032258 a |
| 1000 in² | 0.0064516 a |