Nov 19, 2025
Most ViewedPENIS SIZE BY AGE
Available reporting shows that penis size increases mainly during puberty and generally stabilizes by late adolescence or early adulthood; typical adult erect length estimates cluster around about 5.1...
Parents
American parenting magazine
Fact-Checks
2 resultsNov 23, 2025
Most ViewedWhat is the average erect and flaccid penis length in the United States by age group?
Published medical reviews and systematic summaries place the average erect adult penis length in the roughly 5.1–5.5 inch (12.9–14.0 cm) range, and many health sites say flaccid averages are roughly 3...