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