Convert shackle (Britain 1949) to pica (em)
Selected category: length.
Definition and details for shackle (Britain 1949):
In 1949 the Royal Navy redefined shackle as 90 feet or 27.432 meters.
Definition and details for pica (em):
Typographers and printers use pica (pi or pc) unit of length. One pica is approximately 4.22 mm.