5-Inch Girth: 83rd Percentile (Top 17%)
A 5-inch (12.7 cm) erect girth sits at the 83rd percentile: thicker than about 83% of men. That is +1 cm against the 11.7 cm average circumference.
How it compares
12.7 cm around works out to about 4 cm (1.6 in) across.
This girth calls for a large / XL condom, roughly a 57 mm nominal (lay-flat) width. Fit is set by girth, not length.
What this size means
Thicker than about 83% of men. Girth spreads out less than length, so the climb from the 11.7 cm average to the 90th percentile is only about 1.4 cm around, roughly 4–5 mm across.
Try your own number
The slider starts at 5 in (12.7 cm). Drag it to your measurement and the curve and percentile update instantly. Nothing leaves your device.
Scrub the measurement to see the percentile area grow in real time.
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
Full answer: Is a 5-inch girth big? →
What percentile is a 5-inch girth?
It lands at the 83rd percentile of erect girth, thicker than about 83% of men, using the Veale 2015 mean of 11.7 cm.
How many men are thicker than a 5-inch girth?
About 1 in 6 men are thicker. In a room of 100 men, about 17 would be thicker.
Is a 5-inch girth above average?
It is +1 cm against the 11.7 cm average circumference, so 17% of men are thicker.