Hectares to square miles area units conversion factor is 0.00386102159 (there are **258.999** hectares in 1 square mile). To find out how many sq. miles in hectares, multiply by the conversion factor or simply use the converter.

**1 Hectare = 0.00386102159 Square Mile**

**Hectare** is a metric system area unit and used globally in land measurement, agriculture and forestry. It equals to 10,000 square meters. The abbreviation is "**ha**".

**Square mile** is an imperial and US customary area unit and used mostly in measuring land. The abbreviations are "**mi**^{2}" and "**sq mi**".