Convert inch to shackle (Britain 1949)
Selected category: length.
Definition and details for inch:
Inch (in or '') is a traditional unit of distance equal to 2.54 centimeters or 1/12 foot. The inch was defined as the width of a man's thumb at the base of the nail.
Definition and details for shackle (Britain 1949):
In 1949 the Royal Navy redefined shackle as 90 feet or 27.432 meters.