Correction for the size of a Baseball (packed)
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How big is 327.4279580 pinches?
It's about three-fifths as big as a Baseball (packed)
The size of a Baseball (packed) is about 533.520730 pinches.
(64% packing density) (MLB rules)
Per Major League Baseball rules, a baseball must measure between about 327.427960 pinches and 355.478570 pinches. A major league pitcher can throw a fastball at up to 150 kph (91 mph).