Specimen No. 009 · Primate
Chimpanzee penis size & anatomy
Pan troglodytes
Reference measurement
Approx. 15.5 cm / 6.1 in
Representative estimate
CARTA gives 14–17 cm erect length; calculator uses midpoint.
Measurement source: CARTA / UC San Diego (opens in a new tab)
Did you know?
Chimpanzee erect penis length is reported in the 14–17 cm range.
The chimpanzee penis is described as filiform, tapering to a narrow tip without a visible glans.
Chimpanzees use penile displays, which may be one factor shaping genital evolution.