Convert kilometer to exameter
Please provide values below to convert kilometer [km] to exameter [Em], or Convert exameter to kilometer.
How to Convert Kilometer to Exameter
1 km = 1e-15 Em
Example: convert 15 km to Em:
15 km = 15 × 1e-15 Em = 1.5e-14 Em
Kilometer to Exameter Conversion Table
| kilometer | exameter |
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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.
Exameter
An exameter is a unit of length in the metric system equal to 10^18 meters.
History/Origin
The prefix "exa-" for 10^18 was adopted by the CGPM (General Conference on Weights and Measures) in 1975.
Current Use
The exameter is used in astronomy to measure the vast distances between galaxies.