About the Units
meter (m)
The fundamental SI unit of length, defined by the speed of light in a vacuum.
femtometer (fm)
An ultra-small length unit used in nuclear and particle physics.
Common Conversions
- 1 m = 1000000000000000.0 fm
- 1e-15 m = 1 fm
To convert from meters to femtometers, multiply by 1000000000000000.0
1 m = 1000000000000000.0 fm
The fundamental SI unit of length, defined by the speed of light in a vacuum.
An ultra-small length unit used in nuclear and particle physics.