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Index/Topics/Average penis length

Average penis length

The average erect penis length and its representation in the adult film industry, including the discrepancy between scientific averages and porn presentation.

Fact-Checks

4 results
Jan 10, 2026

What is the average penis size and how does it compare to sizes shown in porn?

Measured, peer-reviewed research places the average erect penis length a little over five inches (commonly cited as ~5.1–5.16 inches), while the adult‑film world markets and tends to feature performer...

Jan 6, 2026

How do self‑reported penis sizes compare to clinician‑measured data across large samples and what biases explain discrepancies?

Large, clinician‑measured series and meta‑analyses converge on an average erect penile length of roughly 12.9–13.9 cm (about 5.1–5.5 in), while self‑reported and internet survey studies routinely retu...

Jan 5, 2026

How do measurement methods (self-report vs clinician measurement) change reported penis girth averages?

Studies that rely on men’s self‑measurement or internet self‑reports consistently produce larger size estimates than clinician‑measured research, and the best pooled clinician‑measured data put averag...

Jan 5, 2026

5'5 girth menis

The phrase "5'5 girth menis" appears to be a shorthand question about a penis with a 5.5‑inch girth; when interpreted that way, a 5.5‑inch (≈14 cm) erect circumference is substantially above the popul...

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