Hectare (ha)
Definition: A hectare (ha) is a metric unit of area equal to 10,000 square meters.
History: Introduced in 1795 as part of the metric system, replacing traditional agricultural land measurements.
Current Use: Widely used in agriculture, forestry, and real estate for large land measurements.
Square Mile (mi²)
Definition: A square mile (mi²) is an imperial unit of area equal to a square with sides of one mile.
History: Historically used in land surveying and property measurement in English-speaking countries.
Current Use: Commonly used to measure large geographical areas such as cities and national parks.
Quick Conversion Table Hectare (ha) to Square Mile (mi²)
1 Hectare (ha) equal to 0.003861022 Square Mile (mi²)
5 Hectare (ha) equal to 0.019305108 Square Mile (mi²)
10 Hectare (ha) equal to 0.038610216 Square Mile (mi²)
20 Hectare (ha) equal to 0.077220432 Square Mile (mi²)
30 Hectare (ha) equal to 0.115830648 Square Mile (mi²)
50 Hectare (ha) equal to 0.193051079 Square Mile (mi²)
75 Hectare (ha) equal to 0.289576619 Square Mile (mi²)
100 Hectare (ha) equal to 0.386102159 Square Mile (mi²)