Convert megameter to femtometer
Please provide values below to convert megameter [Mm] to femtometer [fm], or Convert femtometer to megameter.
How to Convert Megameter to Femtometer
1 Mm = 1e+21 fm
Example: convert 15 Mm to fm:
15 Mm = 15 × 1e+21 fm = 1.5e+22 fm
Megameter to Femtometer Conversion Table
| megameter | femtometer |
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Megameter
A megameter is a unit of length in the metric system equal to 10^6 meters.
History/Origin
The prefix "mega-" for 10^6 was adopted by the CGPM (General Conference on Weights and Measures) in 1873.
Current Use
The megameter is sometimes used to specify the diameters of planets and the distances of satellites.
Femtometer
A femtometer is a unit of length in the metric system equal to 10^-15 meters. It is also known as a fermi.
History/Origin
The prefix "femto-" for 10^-15 was adopted by the CGPM (General Conference on Weights and Measures) in 1964. The unit is also named after the physicist Enrico Fermi.
Current Use
The femtometer is primarily used in nuclear physics to measure the size of atomic nuclei.