Square metres to Square kilometres Converter
Convert square metres (m²) to square kilometres (km²) 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 kilometres
- 1.000000e-6 km²
How to use the square metres to square kilometres converter
- Enter the square metres (m²).
- The results update as you type, or press Calculate.
- Read the square kilometres first, then the supporting figures below it.
Formula
Square kilometres = square metres × 1.000000e-06
Worked example
For example, with these inputs:
- Square metres (m²): 1
the calculator returns:
- Square kilometres: 1.000000e-6 km²
Square metres to Square kilometres table
| Square metres | Square kilometres |
|---|---|
| 1 m² | 1.000000e-6 km² |
| 2 m² | 2.000000e-6 km² |
| 5 m² | 5.000000e-6 km² |
| 10 m² | 1.000000e-5 km² |
| 20 m² | 2.000000e-5 km² |
| 25 m² | 2.500000e-5 km² |
| 50 m² | 5.000000e-5 km² |
| 100 m² | 1.000000e-4 km² |
| 250 m² | 0.00025 km² |
| 500 m² | 0.0005 km² |
| 1,000 m² | 0.001 km² |
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.
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.
Frequently asked questions
How many square kilometres are in one square metre?
1 m² = 1.000000e-6 km².
How do I convert m² to km²?
Square kilometres = square metres × 1.000000e-06.