Convert millimeter to exameter
Please provide values below to convert millimeter [mm] to exameter [Em], or Convert exameter to millimeter.
How to Convert Millimeter to Exameter
1 mm = 1e-21 Em
Example: convert 15 mm to Em:
15 mm = 15 × 1e-21 Em = 1.5e-20 Em
Millimeter to Exameter Conversion Table
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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.
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.