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Erect Penile Length

The average length of an erect penis, based on various studies and meta-analyses.

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Jan 18, 2026
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What do large meta-analyses list as the 90th and 95th percentile erect penis lengths?

Two large, investigator-measured meta-analyses and their downstream summaries place average erect penile length in the low-to-mid 13 cm range and cluster the 90th percentile around ~15.2 cm and the 95...

Jan 19, 2026

Average erect penis girth

The best clinical synthesis places average erect penis circumference (girth) around 11.5–12.3 cm (about 4.5–4.8 inches), with the frequently cited pooled estimate of 11.66 cm (4.59 in) coming from a 2...