At One Place

Hectares to square miles

1 hectare in square miles
1 ha = 0.003861 mi²
mi² = ha × 0.003861021585

To convert hectares to square miles, multiply by 0.003861021585. The table below gives the values people look up most often, and the converter works for any number.

Hectares to square miles table

Common hectare values converted to square miles.
Hectares Square miles
1 ha 0.003861
2 ha 0.007722
3 ha 0.011583
4 ha 0.015444
5 ha 0.019305
10 ha 0.03861
15 ha 0.057915
20 ha 0.07722
25 ha 0.096526
30 ha 0.11583
40 ha 0.15444
50 ha 0.19305
75 ha 0.28958
100 ha 0.3861
250 ha 0.96526
500 ha 1.930511
1,000 ha 3.861022

How the conversion works

The relationship is mi² = ha × 0.003861021585. Both units measure area, so the conversion is a fixed factor that never changes.

Common questions

How many square miles are in one hectare?
One hectare equals 0.003861 square miles. mi² = ha × 0.003861021585.
How do you convert hectares to square miles?
Use mi² = ha × 0.003861021585. So 10 ha is 0.03861 mi².
How many hectares are in one square mile?
One square mile equals 258.9988 hectares, which is the reverse of the conversion above.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked