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. The square kilometer (km²) measures large territories and geographic areas. Central Park in New York covers 3.41 km², while Paris occupies about 105 km². This unit is essential for urban planning, environmental studies, and country-size comparisons.
To convert between Are (a) and Square Kilometer (km²), use the following formulas:
1 Are (a) = 0.0001 Square Kilometer (km²)
1 Square Kilometer (km²) = 10000 Are (a)
1 a = 1 * 0.0001 km² = 0.0001 km²
5 a = 5 * 0.0001 km² = 0.0005 km²
10 a = 10 * 0.0001 km² = 0.001 km²
50 a = 50 * 0.0001 km² = 0.005 km²
| Are (a) | Square Kilometer (km²) |
|---|---|
| 1 a | 0.0001 km² |
| 5 a | 0.0005 km² |
| 10 a | 0.001 km² |
| 50 a | 0.005 km² |
| 100 a | 0.01 km² |