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Temporal trends in penis size

Changes in average penis size over time, as reported by a large temporal meta-analysis, which may reflect real biological shifts or changes in sampling and measurement practices.

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Jan 28, 2026
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What is the average flaccid and erect penis length worldwide?

The best available, peer-reviewed synthesis places the at roughly 13.1 cm (about 5.16–5.2 inches) and average flaccid length in the 9–10 cm range, with stretched flaccid measurements approximating ere...