Clinical percentiles from Veale et al. 2015, with newer 2025 evidence context. Length and girth stay separate โ no fake combined score.
Measure relaxed, not stretched. Veale 2015 pooled averages were 3.61" length ร 3.66" girth. If you enter flaccid length, we show percentage growth; there is no universal grower/shower cutoff.
The same probability tools from the full calculator now live on the homepage too.
Uses your modeled erect-length percentile and assumes the other guys are random draws from the same reference population.
Calculate your profile first.
Choose how confident you want to be that at least one man in the group is larger.
Calculate your profile first.
Compare numbers without pretending a performer's claimed measurement was clinically verified.
Only a handful of countries have peer-reviewed clinical measurement studies. Most country-level figures circulating online come from self-reported surveys or unreliable secondary sources (notably Lynn 2013, which has been widely criticized). We label every country by data tier so you can judge for yourself. Treat self-reported figures as entertainment, not science.
Click any country for details ยท Hover for quick stats
| # | Country | Length | Girth | Data Tier |
|---|
Enter your length in the Calculator tab first. This now matches only against countries with clinical-study data, not self-reported internet rankings.
Calculator percentiles use the Veale et al. 2015 clinician-measured nomograms: erect length n=692 (mean 13.12 cm, SD 1.66) and erect circumference n=381 (mean 11.66 cm, SD 1.10). The larger 15,521 figure applies across all measurement categories, not erect measurements alone.
Clinical-tier studies are shown first. Self-reported/unverified country figures are visually demoted and should be treated as low-confidence historical context, not a scientific world ranking.
Everything runs in your browser. No measurements are stored, logged, or transmitted anywhere. No cookies for tracking your inputs.
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