Unit Definition (em) The em is a printer's unit of relative distance. One em is the height of the type size (in points) being used. If 12 point type is being set, then one em is 12 points, and so on.
Unit Definition (league [UK nautical]) League is a unit of distance long common in Europe and Latin America, although no longer an official unit in any nation.
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Length/Distance 
Convert from em to league [UK nautical]
