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Penile size variations

The normal variations in penile size across different populations, and the importance of precise measurement in evaluation.

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2 results
Jan 11, 2026

What is the global average erect penis length according to recent studies?

Recent large meta-analyses that pooled investigator-measured data place the global average erect penile length at roughly 13.8–13.9 cm (about 5.4–5.5 inches), while regional and methodologic differenc...

Jan 6, 2026

How does penis size vary with age, ethnicity, and body metrics?

Most high-quality reviews find measurable but generally modest differences in penile length by geography/ethnicity, little consistent change with adult age after full maturation, and only weak or inco...