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1 kilometer (km) = 1000000 millimeters (mm). To convert km to mm, multiply the length value by the conversion factor 1000000.
Number of kilometers × 1000000 = Value in millimeters
1 km = 1 × 1000000 = 1000000 mm
| Kilometers [km] | Millimeters [mm] |
| 1 | 1000000 |
| 2 | 2000000 |
| 3 | 3000000 |
| 4 | 4000000 |
| 5 | 5000000 |
| 6 | 6000000 |
| 7 | 7000000 |
| 8 | 8000000 |
| 9 | 9000000 |
| 10 | 10000000 |
| 11 | 11000000 |
| 12 | 12000000 |
| 13 | 13000000 |
| 14 | 14000000 |
| 15 | 15000000 |
| 16 | 16000000 |
| 17 | 17000000 |
| 18 | 18000000 |
| 19 | 19000000 |
| 20 | 20000000 |
How many millimeters are there in a kilometer?
There are 1000000 millimeters in a kilometer.
Which is the bigger unit?
Kilometer is the bigger unit than millimeter.