Hectares to Square miles Converter
Convert hectares (ha) to square miles (sq mi) instantly. Area conversions are everyday maths in Singapore property: HDB flats are listed in square metres while condo listings and PSF prices use square feet.
Result
- Square miles
- 0.003861 sq mi
How to use the hectares to square miles converter
- Enter the hectares (ha).
- The results update as you type, or press Calculate.
- Read the square miles first, then the supporting figures below it.
Formula
Square miles = hectares × 0.0038610216
Worked example
For example, with these inputs:
- Hectares (ha): 1
the calculator returns:
- Square miles: 0.003861 sq mi
Hectares to Square miles table
| Hectares | Square miles |
|---|---|
| 1 ha | 0.003861 sq mi |
| 2 ha | 0.007722 sq mi |
| 5 ha | 0.019305 sq mi |
| 10 ha | 0.03861 sq mi |
| 20 ha | 0.07722 sq mi |
| 25 ha | 0.096526 sq mi |
| 50 ha | 0.193051 sq mi |
| 100 ha | 0.386102 sq mi |
| 250 ha | 0.965255 sq mi |
| 500 ha | 1.9305 sq mi |
| 1,000 ha | 3.861 sq mi |
About this conversion
Area conversions are everyday maths in Singapore property: HDB flats are listed in square metres while condo listings and PSF prices use square feet.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
Frequently asked questions
How many square miles are in one hectare?
1 ha = 0.003861 sq mi.
How do I convert ha to sq mi?
Square miles = hectares × 0.0038610216.