Despite his claims, the evidence suggests his hands are pretty small. Especially for a man that is 6'2" tall. Just saying.
The scientifically objective results: Trump does indeed have hands just below average size, particularly for a man standing 6-foot-2. According to various human anatomy websites, the average-height American adult male (5-foot-10) has an average hand size (measured from the tip of the middle finger to the wrist) of 7.44 inches. Trump's measures 7.25 inches. (His shoe size, incidentally, is reportedly 12, but THR editors have so far been unable to locate a Trump footprint).