Convert kilometer to millimeter
Facts about the Kilometer
A kilometer is equal to 1,000 meters and is used to measure long distances.
Derived from the Greek word 'khilioi' meaning 'thousand', and 'metron' meaning 'measure', the kilometer became standard during the metrication movement in the 18th century.
Common in road distances, maps, GPS systems, and long-distance athletics such as marathons.
1 km = 1000 m = 0.621371 mi
Conversion Table
| From | To | Value |
|---|---|---|
| 1 km | m | 1000 |
| 1 km | mi | 0.621371 |
| 1 km | ft | 3280.84 |
Facts about the Millimeter
A millimeter is one-thousandth (1/1000) of a meter in the metric system.
Used in precision fields since the early adoption of the metric system, the millimeter is essential for detailed and small-scale measurements.
Millimeters are frequently used in mechanical engineering, manufacturing, healthcare, and any field requiring precision (e.g. thickness of paper or diameter of wires).
1 mm = 0.1 cm = 0.001 m = 0.0393701 in
Conversion Table
| From | To | Value |
|---|---|---|
| 1 mm | cm | 0.1 |
| 1 mm | m | 0.001 |
| 1 mm | in | 0.0393701 |