Convert kilometer to Electron radius (classical)
Please provide values below to convert kilometer [km] to Electron radius (classical) [r_e], or Convert Electron radius (classical) to kilometer.
How to Convert Kilometer to Electron Radius (Classical)
1 km = 3.54869118661751e+17 r_e
Example: convert 15 km to r_e:
15 km = 15 × 3.54869118661751e+17 r_e = 5.32303677992626e+18 r_e
Kilometer to Electron Radius (Classical) Conversion Table
| kilometer | Electron radius (classical) |
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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.
Electron Radius (Classical)
The classical electron radius is a quantity with the dimension of length, approximately 2.82 x 10⁻¹⁵ meters.
History/Origin
The classical electron radius is a concept from classical physics that attempts to model the electron as a spherical shell of charge. It is not considered the actual size of an electron.
Current Use
The classical electron radius appears in the Thomson scattering cross-section and is a useful length scale in atomic and high-energy physics.