Hectares to Square Miles Converter
Convert hectares (ha) to square miles (sq mi), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter an area, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 ha = 0.00386102158542 sq mi
- 1 × 0.00386102158542 = 0.00386102158542 sq mi
How to convert hectares to square miles
1 ha = 0.00386102158542 sq mi, so multiply by 0.00386102158542 to go from hectares to square miles. Going the other way, 1 sq mi = 258.998811034 ha.
sq mi = ha × 0.00386102158542 ha = sq mi × 258.998811034
Worked example:
1 ha = 0.00386102158542 sq mi 5 × 0.00386102158542 = 0.0193051079271 sq mi
Hectares to square miles table
| Hectares | Square Miles |
|---|---|
| 1 ha | 0.00386102158542 sq mi |
| 2 ha | 0.00772204317085 sq mi |
| 3 ha | 0.0115830647563 sq mi |
| 4 ha | 0.0154440863417 sq mi |
| 5 ha | 0.0193051079271 sq mi |
| 6 ha | 0.0231661295125 sq mi |
| 7 ha | 0.027027151098 sq mi |
| 8 ha | 0.0308881726834 sq mi |
| 9 ha | 0.0347491942688 sq mi |
| 10 ha | 0.0386102158542 sq mi |
| 15 ha | 0.0579153237814 sq mi |
| 20 ha | 0.0772204317085 sq mi |
| 25 ha | 0.0965255396356 sq mi |
| 30 ha | 0.115830647563 sq mi |
| 40 ha | 0.154440863417 sq mi |
| 50 ha | 0.193051079271 sq mi |
| 75 ha | 0.289576618907 sq mi |
| 100 ha | 0.386102158542 sq mi |
| 250 ha | 0.965255396356 sq mi |
| 500 ha | 1.93051079271 sq mi |
| 1000 ha | 3.86102158542 sq mi |
About the units
- Hectares (ha)
- Hectares, a metric unit. Definition: BIPM SI Brochure (non-SI unit accepted for use with the SI).
- Square Miles (sq mi)
- Square miles, a US customary unit. Definition: NIST Handbook 44 Appendix C (derived from the international mile).