Convert femtometer to finger (width)
Selected category: length.
Definition and details for femtometer:
Femtometer (fm) is a metric unit of distance equal to one quadrillionth of a meter (10-15 m).
Definition and details for finger (width):
Finger width is a traditional unit of length used in England before the 12 inch English foot. This unit is equal to 19.05 mm.