Convert shackle (Britain 1949) to quarter (of mile)
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 quarter (of mile):
Quarter is an informal unit of length used in athletics and horse racing and is equal to 1/4 mile or 402.336 meters.