How to Convert Hectares to Square metres (ha to m²)
Area conversions are everyday maths in Singapore property: HDB flats are listed in square metres while condo listings and PSF prices use square feet. This guide shows how to convert hectares into square metres by hand, with examples and a quick-reference table.
The conversion
To convert hectares to square metres, multiply the value by 10,000. To go the other way, divide by the same number (or multiply by 0.0001). For a quick estimate, multiply by about 10,000.
Square metres = hectares × 10,000
Worked examples
- 3 ha = 30,000 m²
- 12.5 ha = 125,000 m²
- 75 ha = 750,000 m²
Hectares to Square metres table
| Hectares | Square metres |
|---|---|
| 1 ha | 10,000 m² |
| 2 ha | 20,000 m² |
| 5 ha | 50,000 m² |
| 10 ha | 100,000 m² |
| 20 ha | 200,000 m² |
| 25 ha | 250,000 m² |
| 50 ha | 500,000 m² |
| 100 ha | 1,000,000 m² |
| 250 ha | 2,500,000 m² |
| 500 ha | 5,000,000 m² |
| 1,000 ha | 10,000,000 m² |
Common questions
Is ha to m² exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Square metres to Hectares converter.
Mistakes to avoid
Forgetting squared and cubed units
Area and volume factors are the length factor squared or cubed, so 1 m² is about 10.76 sq ft, not 3.28.
Multiplying when you should divide
Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.
Rounding the factor too early
Using 3 instead of 3.28 for feet per metre introduces an error of almost 9% before you have started.
Background
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.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
For any value, use the Hectares to Square metres Converter or browse all area converters.
Run your own numbers: Hectares to Square metres Converter