Convert kilometer to millimeter
Please provide values below to convert kilometer [km] to millimeter [mm], or Convert millimeter to kilometer.
How to Convert Kilometer to Millimeter
1 km = 1000000 mm
Example: convert 15 km to mm:
15 km = 15 × 1000000 mm = 15000000 mm
Kilometer to Millimeter Conversion Table
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Kilometer
A kilometer is a unit of length in the metric system, equal to one thousand meters.
History/Origin
The term "kilometer" is derived from the Greek words "khilioi" (thousand) and "metron" (measure). The kilometer was first defined as part of the metric system in France in 1795.
Current Use
The kilometer is the most widely used unit of distance for road signs and travel distances in the world, with the notable exceptions of the United States and the United Kingdom.
Millimeter
A millimeter is a unit of length in the metric system, equal to one-thousandth of a meter.
History/Origin
The prefix "milli-" comes from the Latin word "mille," meaning thousand. The millimeter was part of the original metric system adopted in France in 1795.
Current Use
The millimeter is widely used in engineering and manufacturing for high-precision measurements. It is also a common unit in construction and for measuring small objects.