Convert mile (metric U.S. high school) to shackle (Britain 1949)
Selected category: length.
Definition and details for mile (metric U.S. high school):
Sometimes in U.S. high schools, metric mile is equal to 1600 meters.
Definition and details for shackle (Britain 1949):
In 1949 the Royal Navy redefined shackle as 90 feet or 27.432 meters.