Square metres to Square kilometres
Convert square metres to square kilometres (m² to km²). 1 m² = 0.000001 km². Use the calculator, formula and conversion table.
How to convert square metres to square kilometres
Multiply the amount in square metres by 0.000001 to get square kilometres. The displayed factor and results are rounded to 12 significant digits.
km² = m² × 0.000001Worked example
1 m² = 0.000001 km². Change the amount in the calculator above to use your own value.
Units and assumptions
Area uses squared length factors: one square foot is exactly 0.09290304 square metres. Acres are international acres; hectares equal 10,000 square metres.
Calculator results use floating-point arithmetic and are rounded for display. The reference table below uses up to 12 significant digits.
Square metres to Square kilometres table
| Square metres (m²) | Square kilometres (km²) |
|---|---|
| 0 | 0 |
| 1 | 0.000001 |
| 5 | 0.000005 |
| 10 | 0.00001 |
| 25 | 0.000025 |
| 100 | 0.0001 |
| 1,000 | 0.001 |
About this conversion
What is the formula for square metres to square kilometres?
km² = m² × 0.000001. Multiply the amount in square metres by 0.000001 to get square kilometres. The displayed factor and results are rounded to 12 significant digits.
How do I convert back to square metres?
Use the square kilometres to square metres calculator to reverse this conversion. You can also use Swap units in the calculator above.
Can I use a different pair of units?
Choose another unit in the calculator, or open the area converter to browse all supported pairs.