Summary

Where Jack Ma's mouth sits at the wide end of the wiki, at 1.12x, Sylvester Stallone's Interpupillary-Mouth Width Ratio comes in at 0.80x, below its ideal range of 0.83 to 0.87x and scoring 9.6. This measurement evaluates whether mouth width aligns with interpupillary distance, with the ideal set at a mouth slightly narrower than eye spacing. Sylvester's value is matched by Alexander Zanoza, Bill Skarsgård and Brando Erba, and it sits higher than 35% of the men on the wiki. At the other extreme, Marty Feldman records 0.64x, the lowest on the wiki. See Sylvester's Chin to philtrum ratio or Sylvester's full Harmony breakdown for more.