About the Units
femtometer (fm)
An ultra-small length unit used in nuclear and particle physics.
millimeter (mm)
A tiny length unit equal to 0.001 meters, used in precision engineering.
Common Conversions
- 1 fm = 1e-12 mm
- 1000000060000.0 fm = 1 mm
Convert from femtometers to millimeters
Conversion Information
To convert from femtometers to millimeters, multiply by 1e-12
1 fm = 1e-12 mm