15 cm Penis: 87th Percentile (Top 13%)
A 15 cm (5.9 in) erect penis sits at the 87th percentile: bigger than about 87% of men. That is +1.9 cm against the 13.1 cm average.
How it compares
Drawn to scale against the 13.1 cm average and a few objects you can picture.
A 15 cm average lines up with these national figures most closely:
National averages are self-reported and rough, so treat them as context, not fact.
What this size means
Above the middle of the curve: longer than about 87% of men. The distances are small. The whole climb from the 13.1 cm average to the 90th percentile is only about 2 cm (0.8 in).
Try your own number
The slider starts at 15 cm. Drag it to your measurement and the curve and percentile update instantly. Nothing leaves your device.
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How this is measured
These figures use bone-pressed length, measured from the pubic bone, the way the reference nomograms were taken. Measured without pressing into the fat pad, the same erection reads about 14 cm. Girth is measured around the thickest part of the shaft.
Common questions
What percentile is a 15 cm penis?
It lands at the 87th percentile of erect length, bigger than about 87% of men, against the Veale 2015 mean of 13.1 cm.
How many men are bigger than 15 cm?
About 1 in 8 men are longer. In a room of 100 men, about 13 would be longer.
Is 15 cm big?
It is +1.9 cm against the 13.1 cm average, at the 87th percentile, so 13% of men are longer.