Convert fen (Hong Kong) to femtometer
Selected category: length.
Definition and details for fen (Hong Kong):
Fen is used in Hnog Kong as a unit of length equal to 1/100 chek (Hong Kong foot) or 3.71475 mm.
Definition and details for femtometer:
Femtometer (fm) is a metric unit of distance equal to one quadrillionth of a meter (10-15 m).