Convert square mile (mi²) to hectare (ha).
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Hectare to Square Mile Converter (ha to sq mi)
Convert hectare (ha) to square mile (mi²).Unit Converter · Area
Quick answer
1 hectare (ha) is approximately equal to 0.00386102 square miles (sq mi). 1 square mile (sq mi) is approximately equal to 258.9988 hectares (ha).
To convert ha to sq mi, multiply the value in hectares by 0.0038610216. For example, 10 ha = 0.03861022 sq mi, and 100 ha = 0.38610216 sq mi.
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Quick reference — hectare to square mile
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How to convert hectares to square miles
How many square miles are in a hectare? 1 hectare is about 0.00386102 square miles. This free ha to mi² converter and hectare to square mile calculator gives the answer instantly for any value, and the same conversion is also written as ha to sq mi.
To convert hectare (ha) to square mile (mi²), multiply the value in hectares by 0.0038610216.
mi² = ha × 0.0038610216
- 1
Take the value in hectares
For example, 25 ha.
- 2
Multiply by 0.0038610216
25 × 0.0038610216.
- 3
Read the answer in square miles
25 ha = 0.09652554 mi².
Hectare to Square Mile conversion table
Common values from 1 to 1,000 hectares converted to square miles.
| Hectare (ha) | Square Mile (mi²) |
|---|---|
| 1 ha | 0.00386102 mi² |
| 2 ha | 0.00772204 mi² |
| 3 ha | 0.01158306 mi² |
| 4 ha | 0.01544409 mi² |
| 5 ha | 0.01930511 mi² |
| 6 ha | 0.02316613 mi² |
| 7 ha | 0.02702715 mi² |
| 8 ha | 0.03088817 mi² |
| 9 ha | 0.03474919 mi² |
| 10 ha | 0.03861022 mi² |
| 15 ha | 0.05791532 mi² |
| 20 ha | 0.07722043 mi² |
| 25 ha | 0.09652554 mi² |
| Hectare (ha) | Square Mile (mi²) |
|---|---|
| 30 ha | 0.11583065 mi² |
| 40 ha | 0.15444086 mi² |
| 50 ha | 0.19305108 mi² |
| 60 ha | 0.2316613 mi² |
| 70 ha | 0.27027151 mi² |
| 75 ha | 0.28957662 mi² |
| 80 ha | 0.30888173 mi² |
| 90 ha | 0.34749194 mi² |
| 100 ha | 0.38610216 mi² |
| 250 ha | 0.9652554 mi² |
| 500 ha | 1.93051079 mi² |
| 1,000 ha | 3.86102159 mi² |
About hectares and square miles
Hectare (ha)
A hectare (ha) is 10,000 square meters, about 2.47 acres. It is used for farmland and large plots.
Square Mile (mi²)
A square mile is 640 acres, about 2.59 square kilometers. It is used for large land areas in the US and UK.
ha to mi²: common questions
- How many square miles are in 1 hectare?
- 1 hectare (ha) is approximately equal to 0.00386102 square miles (sq mi). In short: 1 ha ≈ 0.00386102 sq mi.
- How do I convert hectares to square miles?
- To convert ha to mi², multiply the value in hectares by 0.0038610216. For example, 5 ha = 0.01930511 mi².
- How do I convert square miles to hectares?
- Use the Square Mile to Hectare converter, which applies the exact reverse factor.
- What is 10 ha in mi², and what is 100 ha?
- 10 ha = 0.03861022 mi², and 100 ha = 0.38610216 mi². The table above lists more values from 1 to 1,000.
- Is this ha to mi² converter accurate?
- Yes. It uses the exact conversion factor and shows results to as many as 8 decimal places, so you can rely on it for study, work and everyday measuring.
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