How to Convert Square metres to Hectares (m² to ha)
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 square metres into hectares by hand, with examples and a quick-reference table.
The conversion
To convert square metres to hectares, multiply the value by 0.0001. To go the other way, divide by the same number (or multiply by 10,000). Because the factor is tiny, scientific notation keeps the numbers manageable.
Hectares = square metres × 0.0001
Worked examples
- 3 m² = 0.0003 ha
- 12.5 m² = 0.00125 ha
- 75 m² = 0.0075 ha
Square metres to Hectares table
| Square metres | Hectares |
|---|---|
| 1 m² | 0.0001 ha |
| 2 m² | 0.0002 ha |
| 5 m² | 0.0005 ha |
| 10 m² | 0.001 ha |
| 20 m² | 0.002 ha |
| 25 m² | 0.0025 ha |
| 50 m² | 0.005 ha |
| 100 m² | 0.01 ha |
| 250 m² | 0.025 ha |
| 500 m² | 0.05 ha |
| 1,000 m² | 0.1 ha |
Common questions
Is m² to ha 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 Hectares to Square metres converter.
Mistakes to avoid
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
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.
Dropping the units
A bare number without a unit is easy to misread later. Always write the unit with the result.
Background
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.
For everyday use, three or four significant figures are usually enough. Engineering, science and trade documents may need more, and rounding should happen only at the end of a calculation.
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.
For any value, use the Square metres to Hectares Converter or browse all area converters.
Run your own numbers: Square metres to Hectares Converter