Square metres to square kilometres converter
Square kilometres (km²)
1 square metre = 0.000001 square kilometres
How to convert square metres to square kilometres
km² = m² × 0.000001
Multiply the number of square metres by 0.000001 to get square kilometres. Going the other way, divide by 0.000001 (or multiply by 1000000).
One square metre is exactly defined as 0.000001 square kilometres (to 12 significant figures), and one square kilometre is 1000000 square metres.
Worked examples
- Convert 5 square metres: 5 × 0.000001 = 0.000005 0.000005 square kilometres.
- Convert 12.5 square metres: 12.5 × 0.000001 = 0.0000125 0.0000125 square kilometres.
- Convert 250 square metres: 250 × 0.000001 = 0.00025 0.00025 square kilometres.
Quick-reference table
| m² | km² |
|---|---|
| 1 | 0.000001 |
| 2 | 0.000002 |
| 3 | 0.000003 |
| 5 | 0.000005 |
| 10 | 0.00001 |
| 15 | 0.000015 |
| 20 | 0.00002 |
| 25 | 0.000025 |
| 50 | 0.00005 |
| 75 | 0.000075 |
| 100 | 0.0001 |
| 1,000 | 0.001 |
| km² | m² |
|---|---|
| 1 | 1,000,000 |
| 2 | 2,000,000 |
| 3 | 3,000,000 |
| 5 | 5,000,000 |
| 10 | 10,000,000 |
| 15 | 15,000,000 |
| 20 | 20,000,000 |
| 25 | 25,000,000 |
| 50 | 50,000,000 |
| 75 | 75,000,000 |
| 100 | 100,000,000 |
| 1,000 | 1,000,000,000 |
Related conversions
Frequently asked questions
How many square kilometres are in 1 square metre?
1 square metre equals 0.000001 square kilometres.
What is the formula to convert square metres to square kilometres?
Use km² = m² × 0.000001. Multiply the number of square metres by 0.000001 to get square kilometres. Going the other way, divide by 0.000001 (or multiply by 1000000).
What is 100 square metres in square kilometres?
100 square metres is 0.0001 square kilometres.