The most precise measurement ever given for the length of John Holmes' penis was 12.58 inches, cited in SCREW magazine. But 20.51% of that figure was pure hype.
In a 1989 Rolling Stone article, ex-wife Sharon recalled John's self-amazement when he measured his penis in 1968: "It goes from five inches all the way to ten. Ten inches long! Four inches around!" That night, to Sharon's dismay, he revealed his intention to become a porn actor.
what he lacked in girth
was made up for in length