Convert hectares to square miles
1 ha = 0.00386102 mi². Change the amount below, or read the formula and the reference table further down.
1 hectare equals
square miles
1 ha = 0.00386102 mi²
The formula
Hectares and square miles both measure area from the same zero, so a single multiplier does the job.
mi² = ha × 0.0038610216
Going the other way? Convert square miles to hectares.
Hectares to square miles table
Common values, rounded for reading.
| Hectares (ha) | Square miles (mi²) |
|---|---|
| 1 | 0.003861 |
| 2 | 0.007722 |
| 3 | 0.011583 |
| 4 | 0.015444 |
| 5 | 0.019305 |
| 6 | 0.023166 |
| 7 | 0.027027 |
| 8 | 0.030888 |
| 9 | 0.034749 |
| 10 | 0.03861 |
| 15 | 0.057915 |
| 20 | 0.07722 |
| 25 | 0.096526 |
| 30 | 0.115831 |
| 40 | 0.154441 |
| 50 | 0.193051 |
| 75 | 0.289577 |
| 100 | 0.386102 |
| 250 | 0.965255 |
| 500 | 1.9305 |
| 1,000 | 3.861 |
Questions people ask
- How many square miles are in a hectare?
- One hectare equals 0.0038610216 square miles.
- How do I convert hectares to square miles by hand?
- Multiply the number of hectares by 0.0038610216. For a rough check, 0.004 is close enough for most everyday use.
- What is 1 hectare in square miles?
- 1 hectare is 0.00386102 square miles.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.