Square millimetres to square kilometres
1 mm² = 1E-12 km²
All units in this category
- 1mm²
- 0.01cm²
- 0.000001m²
- 1E-10ha
- 1E-12km²
- 0.00001076391ft²
- 2.4710538E-10ac
- 3.8610216E-13mi²
Formula
Multiply the value in square millimetres by 1E-12 to get square kilometres.
km² = mm² × 1E-12
How to convert square millimetres to square kilometres
Type a value in the field above and the result is calculated instantly. Use the arrow button to swap direction, or pick other units from the lists.
Square millimetres to square kilometres – common values
| Square millimetres (mm²) | Square kilometres (km²) |
|---|---|
| 1 | 1E-12 |
| 2 | 2E-12 |
| 5 | 5E-12 |
| 10 | 1E-11 |
| 20 | 2E-11 |
| 50 | 5E-11 |
| 100 | 1E-10 |
| 500 | 5E-10 |
| 1,000 | 1E-9 |
| 10,000 | 1E-8 |