mm to km converter
1 millimeter equals 0.000001 kilometers. Conversions use km = mm × 0.000001
mm → 0.000001 km
km = mm × 0.000001
Converter
Worked examples
- 1 mm = 0.000001 km
- 2 mm = 0.000002 km
- 5 mm = 0.000005 km
- 10 mm = 0.00001 km
- 100 mm = 0.0001 km
millimeters to kilometers conversion table
| mm | km | Arithmetic |
|---|---|---|
| 1 mm | 0.000001 km | × 0.000001 |
| 2 mm | 0.000002 km | × 0.000001 |
| 3 mm | 0.000003 km | × 0.000001 |
| 4 mm | 0.000004 km | × 0.000001 |
| 5 mm | 0.000005 km | × 0.000001 |
| 6 mm | 0.000006 km | × 0.000001 |
| 8 mm | 0.000008 km | × 0.000001 |
| 10 mm | 0.00001 km | × 0.000001 |
| 12 mm | 0.000012 km | × 0.000001 |
| 15 mm | 0.000015 km | × 0.000001 |
| 20 mm | 0.00002 km | × 0.000001 |
| 25 mm | 0.000025 km | × 0.000001 |
| 30 mm | 0.00003 km | × 0.000001 |
| 40 mm | 0.00004 km | × 0.000001 |
| 50 mm | 0.00005 km | × 0.000001 |
| 60 mm | 0.00006 km | × 0.000001 |
| 70 mm | 0.00007 km | × 0.000001 |
| 80 mm | 0.00008 km | × 0.000001 |
| 90 mm | 0.00009 km | × 0.000001 |
| 100 mm | 0.0001 km | × 0.000001 |
How to convert mm to km
- Take your value in millimeters.
- Multiply by 0.000001
- That is your answer in kilometers — no rounding needed until you choose a display precision.
Related conversions
km to mmmm to cmmm to mmm to inmm to ftmm to ydmm to mimm to nmicm to kmall length units
Questions
How many kilometers in 1 millimeter?
Exactly 0.000001 km. The factor follows from the definitions of both units, not from a measurement, so it is exact.
How do I convert mm to km?
Multiply the millimeters figure by 0.000001 — or use the converter above, which updates as you type.
Is mm to km the same as km to mm?
No — they are inverses. One mm is 0.000001 km, while one km is 1,000,000 mm.
What is 1 mm in km?
1 mm = 0.000001 km (see the value page for the full arithmetic).