10 cm Girth, by the Numbers
A 10 cm (3.9 in) erect girth sits at the 7th percentile, thicker than about 7% of men. That is −1.7 cm against the 11.7 cm average circumference.
How it compares
This girth calls for a snug / close-fit condom, roughly a 45 mm nominal (lay-flat) width. Fit is set by girth, not length.
How this is measured
Girth is the circumference around the thickest part of the erect shaft, measured with a flexible tape or a strip of paper. It is unaffected by the bone-pressed convention that applies to length.
Common questions
What percentile is a 10 cm girth?
It lands at the 7th percentile of erect girth, thicker than roughly 7% of men, against the Veale 2015 mean of 11.7 cm.
How many men are thicker than 10 cm?
A girth this small is itself uncommon: about 1 in 15 men are slimmer. Out of 100 men, about 93 would exceed 10 cm (3.9 in) around.
Is a 10 cm girth big?
It is −1.7 cm against the 11.7 cm average circumference, at the 7th percentile, so 93% of men are thicker.