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Meta-analyses of penis size

Meta-analyses attempt to pool heterogeneous sources and find means below 12 cm for erect circumference.

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Jan 31, 2026
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Is a 6.2 inch in circumference erection considered big?

A fully erect circumference of (≈15.8 cm) is substantially larger than the measured averages in major reviews and would be classified as above‑average or “large” by the datasets commonly cited in medi...

Jan 7, 2026

Are there significant differences in penis size by country, ethnicity, or age in peer-reviewed studies?

Peer‑reviewed systematic reviews and meta‑analyses find modest but statistically detectable differences in average penile dimensions between geographic regions and some ethnic groupings, while emphasi...