Kilometer to Millimeter (km → mm)
Convert kilometer to millimeter instantly. The conversion factor below is exact by international definition.
Realtime·length·SI
Exact
km
× 1,000,000
mm
1,000,000
Precision [auto]
6
📐km to mm formulaExact
mm = km × 1.000000e+6
Inverse: km = mm × 1.000000e-6
Worked example: 1 km = 1.000000e+6 mm
ℹ️About these units
Kilometer (km)
Road distances in most countries.
Millimeter (mm)
📊Reference table: km → mm
| Kilometer (km) | Millimeter (mm) |
|---|---|
| 1 | 1,000,000 |
| 2 | 2,000,000 |
| 5 | 5,000,000 |
| 10 | 10,000,000 |
| 15 | 15,000,000 |
| 20 | 20,000,000 |
| 25 | 25,000,000 |
| 50 | 50,000,000 |
| 100 | 100,000,000 |
| 250 | 250,000,000 |
| 500 | 500,000,000 |
| 750 | 750,000,000 |
| 1,000 | 1,000,000,000 |
Want a downloadable CSV? Append ?format=csv to the API /api/v1/table endpoint.
🔁Reverse & related
🔌API & widget
GET https://convertnavi.com/api/v1/convert?value=10&from=kilometer&to=millimeterEmbed this converter
<div data-convertnavi="kilometer->millimeter"></div>
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