Index/Topics/Penis size measurement studies

Penis size measurement studies

Studies attempting to measure penis size across different racial and ethnic groups, highlighting methodological weaknesses and limitations.

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Jan 14, 2026
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What is the average penis size in the general male population?

A clear consensus in peer-reviewed reviews and large meta-analyses places the mean erect adult human penis length at roughly 12.9–13.6 cm (about 5.1–5.4 in), with girth averaging around 11.7 cm (4.6 i...

Jan 16, 2026
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What percentage of men have an 8.25" long penis with a 6" girth?

Measured studies put the average erect penis length at about 5.1–5.5 inches and the average erect girth at roughly 4.6–4.8 inches (11.66–12.2 cm), and peer‑reviewed analyses show that a 6.3‑inch erect...

Jan 14, 2026
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What percentile is a 6.5‑inch erect penis girth in studies that report full distributions?

A 6.5‑inch erect penis girth (≈16.5 cm) lies far to the right of clinically measured population averages, which center around roughly 11.5–11.7 cm (4.5–4.6 in) for erect circumference; based on the pu...

Jan 22, 2026

What study methods produce the most reliable adult penis-size measurements (flaccid, stretched, erect) and why do results vary?

converges on a clear answer: the most reliable use —specifically bone‑pressed length from the pubic bone to the glans tip and erect measurements taken under controlled conditions—while flaccid or self...

Jan 21, 2026

what percentile of measured length is a 19.7 cm penis? What percentile of measured girth is a 15 cm penis?

A erect length is well beyond common population averages and, based on large pooled datasets and percentile reports, sits above the 97.5th–99th percentile — in other words, larger than more than 97.5–...