Convert Hectares to Square Miles
One hectare equals 0.003861 square miles. Type any value to convert hectares to square miles instantly — with a full reference table below.
Convert Hectares to Square Miles
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Conversion formula
To convert hectares to square miles, multiply by 0.003861. One hectare equals 0.003861 mi², and one square mile equals 258.998811 ha.
Hectares to Square Miles table
About converting Hectares to Square Miles
Hectares (ha) and Square Miles (mi²) are both units of area. The exact factor is 1 ha = 0.003861 mi², so multiply by 0.003861 to go from hectares to square miles (or divide to go back).
The conversion is exact and runs entirely in your browser. Need the reverse? Use the Square Miles to Hectares converter, or the full unit converter for every unit at once.
Frequently asked questions
How many square miles are in one hectare?
One hectare equals 0.003861 square miles.
How do I convert hectares to square miles?
Multiply the number of hectares by 0.003861. For example, 10 hectares = 0.03861 square miles.
What is 5 hectares in square miles?
5 hectares is 0.019305 square miles.