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Index/Topics/Average Penis Girth

Average Penis Girth

The average adult male flaccid penis girth is around 9.3-9.4 cm, according to measured studies and reviews from organizations such as the Sexual Medicine Society of North America.

Fact-Checks

4 results
Jan 12, 2026
Most Viewed

How is penis size measured (stretched, flaccid, erect) in published research?

Published research measures penile length and girth using specific anatomical landmarks and three principal states—flaccid, stretched (SPL), and erect—because each state yields different, non-intercha...

Jan 19, 2026

Is 12.7cm penis girth above average

A circumference (girth) of 12.7 cm is larger than the most commonly cited clinical average for erect penile circumference—11.66 cm—so it can be described as above average compared with widely‑used poo...

Jan 19, 2026

Is 12.5cm penis girth above average

12.5 cm in girth—if measured as erect circumference—is modestly above the central averages reported in large clinical and review studies, which cluster around roughly 11.5–12.3 cm (4.5–4.8 in) for ere...

Jan 7, 2026

How does average penis girth in the United States compare to global averages (e.g., 2015 systematic reviews)?

The best large-scale clinician‑measured synthesis (Veale et al., 2015) reports an average erect circumference (girth) of about 11.66 cm (4.59 in), and a later body of work confirms similar global nomo...

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