Convert square miles to hectares
1 mi² = 259 ha. Change the amount below, or read the formula and the reference table further down.
1 square mile equals
hectares
1 mi² = 259 ha
The formula
Square miles and hectares both measure area from the same zero, so a single multiplier does the job.
ha = mi² × 259
Going the other way? Convert hectares to square miles.
Square miles to hectares table
Common values, rounded for reading.
| Square miles (mi²) | Hectares (ha) |
|---|---|
| 1 | 259 |
| 2 | 518 |
| 3 | 777 |
| 4 | 1,036 |
| 5 | 1,294.99 |
| 6 | 1,553.99 |
| 7 | 1,812.99 |
| 8 | 2,071.99 |
| 9 | 2,330.99 |
| 10 | 2,589.99 |
| 15 | 3,884.98 |
| 20 | 5,179.98 |
| 25 | 6,474.97 |
| 30 | 7,769.96 |
| 40 | 10,359.95 |
| 50 | 12,949.94 |
| 75 | 19,424.91 |
| 100 | 25,899.88 |
| 250 | 64,749.7 |
| 500 | 129,499.41 |
| 1,000 | 258,998.81 |
Questions people ask
- How many hectares are in a square mile?
- One square mile equals 259 hectares.
- How do I convert square miles to hectares by hand?
- Multiply the number of square miles by 259. For a rough check, 259 is close enough for most everyday use.
- What is 1 square mile in hectares?
- 1 square mile is 259 hectares.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.