1 pica is exactly 12 points. In SI units the size of a pica depends on how large a point is. A PostScript point is 1/72 inches, so 1 PostScript pica would be about 0.0042333 meters.
4 000 meters. A general or metric league of 4 kilometers. Leagues based on the mile are typically smaller at 3 miles, however there are many variations. Used by Jules Verne in 20 000 Leagues Under the Sea. 1 League (metric) = 4 000 meters (SI unit).