Square kilometres to Ares Converter
Convert square kilometres (km²) to ares (a) 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
- Ares
- 10,000 a
How to use the square kilometres to ares converter
- Enter the square kilometres (km²).
- The results update as you type, or press Calculate.
- Read the ares first, then the supporting figures below it.
Formula
Ares = square kilometres × 10,000
Worked example
For example, with these inputs:
- Square kilometres (km²): 1
the calculator returns:
- Ares: 10,000 a
Square kilometres to Ares table
| Square kilometres | Ares |
|---|---|
| 1 km² | 10,000 a |
| 2 km² | 20,000 a |
| 5 km² | 50,000 a |
| 10 km² | 100,000 a |
| 20 km² | 200,000 a |
| 25 km² | 250,000 a |
| 50 km² | 500,000 a |
| 100 km² | 1,000,000 a |
| 250 km² | 2,500,000 a |
| 500 km² | 5,000,000 a |
| 1,000 km² | 10,000,000 a |
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.
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.
Frequently asked questions
How many ares are in one square kilometre?
1 km² = 10,000 a.
How do I convert km² to a?
Ares = square kilometres × 10,000.