What men claim when nobody is watching
17,942 self-reported submissions, set against 778 men measured by clinicians. Nearly everything interesting about this data lives in the difference.
The rest of the site counts every row. This page counts only what survived filtering, so its totals are lower. 1,047 submissions (5.5%) were set aside: repeat submissions, values sitting exactly on the form's limits, and measurements that are not anatomically possible. Nothing was deleted — the full breakdown and the thresholds are in Method.
The gap
Every measurement submitted to this site, against the distribution clinicians actually record. Both series sit on the same ruler.
How much the benchmark matters
Published clinical studies disagree about the average, mostly because they disagree about where to put the ruler. Measuring pressed to the pubic bone adds 1.81 cm — measured within a single study of 778 men, so it is not a difference between populations. Self-measurers press. Every number on this page shifts accordingly.
- A 7″ claim ranks at
- 99.7
- Claims above its top 2.5%
- 61%
- A 7″ claim ranks at
- 99.8
- Claims above its top 2.5%
- 61%
Publishes no standard deviation, so it cannot rank an individual.
- A 7″ claim ranks at
- 96.8
- Claims above its top 2.5%
- 34%
Mostafaei 2025 (meta-analysis) is the largest and newest pooled estimate, but it reports a standard error rather than a standard deviation, so it can say where the average is without saying how spread out people are. Its interval comfortably contains the reference used here — the studies agree; the newer one is simply less precise.
Loading rounding analysis…
Loading methodology…