What men claim when nobody is watching
18,719 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. The clinical comparison uses a filtered sample; the rounding section uses all submissions. 947 submissions (4.8%) were set aside for the comparison. These rules flag possible data-quality issues, not impossible bodies. Nothing was deleted. See the effect of filtering and the rules in Method.
The gap
The claims that passed the filters, against a model based on clinical measurements. The bars show included submissions. The dashed curve is a normal distribution fitted to the mean and standard deviation of the submissions inside the plotted 7 to 27 cm range, rather than an interpolation of the bars. The shaded clinical curve is also a normal estimate, not the study's raw measurements. All share the same ruler and bin-count scale.
Submission count per 0.25 cm bin
Submitted length
2.76–2.85 in
7.00–7.25 cm
18 submissions · 0.10%
Submitted length
2.85–2.95 in
7.25–7.50 cm
5 submissions · 0.03%
Submitted length
2.95–3.05 in
7.50–7.75 cm
87 submissions · 0.46%
Submitted length
3.05–3.15 in
7.75–8.00 cm
5 submissions · 0.03%
Submitted length
3.15–3.25 in
8.00–8.25 cm
38 submissions · 0.20%
Submitted length
3.25–3.35 in
8.25–8.50 cm
4 submissions · 0.02%
Submitted length
3.35–3.44 in
8.50–8.75 cm
8 submissions · 0.04%
Submitted length
3.44–3.54 in
8.75–9.00 cm
54 submissions · 0.29%
Submitted length
3.54–3.64 in
9.00–9.25 cm
43 submissions · 0.23%
Submitted length
3.64–3.74 in
9.25–9.50 cm
23 submissions · 0.12%
Submitted length
3.74–3.84 in
9.50–9.75 cm
36 submissions · 0.19%
Submitted length
3.84–3.94 in
9.75–10.00 cm
20 submissions · 0.11%
Submitted length
3.94–4.04 in
10.00–10.25 cm
273 submissions · 1.46%
Submitted length
4.04–4.13 in
10.25–10.50 cm
15 submissions · 0.08%
Submitted length
4.13–4.23 in
10.50–10.75 cm
47 submissions · 0.25%
Submitted length
4.23–4.33 in
10.75–11.00 cm
23 submissions · 0.12%
Submitted length
4.33–4.43 in
11.00–11.25 cm
98 submissions · 0.52%
Submitted length
4.43–4.53 in
11.25–11.50 cm
176 submissions · 0.94%
Submitted length
4.53–4.63 in
11.50–11.75 cm
47 submissions · 0.25%
Submitted length
4.63–4.72 in
11.75–12.00 cm
54 submissions · 0.29%
Submitted length
4.72–4.82 in
12.00–12.25 cm
206 submissions · 1.10%
Submitted length
4.82–4.92 in
12.25–12.50 cm
54 submissions · 0.29%
Submitted length
4.92–5.02 in
12.50–12.75 cm
491 submissions · 2.62%
Submitted length
5.02–5.12 in
12.75–13.00 cm
59 submissions · 0.32%
Submitted length
5.12–5.22 in
13.00–13.25 cm
308 submissions · 1.65%
Submitted length
5.22–5.31 in
13.25–13.50 cm
83 submissions · 0.44%
Submitted length
5.31–5.41 in
13.50–13.75 cm
138 submissions · 0.74%
Submitted length
5.41–5.51 in
13.75–14.00 cm
385 submissions · 2.06%
Submitted length
5.51–5.61 in
14.00–14.25 cm
359 submissions · 1.92%
Submitted length
5.61–5.71 in
14.25–14.50 cm
153 submissions · 0.82%
Submitted length
5.71–5.81 in
14.50–14.75 cm
301 submissions · 1.61%
Submitted length
5.81–5.91 in
14.75–15.00 cm
131 submissions · 0.70%
Submitted length
5.91–6.00 in
15.00–15.25 cm
1,648 submissions · 8.80%
Submitted length
6.00–6.10 in
15.25–15.50 cm
211 submissions · 1.13%
Submitted length
6.10–6.20 in
15.50–15.75 cm
184 submissions · 0.98%
Submitted length
6.20–6.30 in
15.75–16.00 cm
306 submissions · 1.63%
Submitted length
6.30–6.40 in
16.00–16.25 cm
842 submissions · 4.50%
Submitted length
6.40–6.50 in
16.25–16.50 cm
192 submissions · 1.03%
Submitted length
6.50–6.59 in
16.50–16.75 cm
1,245 submissions · 6.65%
Submitted length
6.59–6.69 in
16.75–17.00 cm
166 submissions · 0.89%
Submitted length
6.69–6.79 in
17.00–17.25 cm
1,080 submissions · 5.77%
Submitted length
6.79–6.89 in
17.25–17.50 cm
357 submissions · 1.91%
Submitted length
6.89–6.99 in
17.50–17.75 cm
497 submissions · 2.66%
Submitted length
6.99–7.09 in
17.75–18.00 cm
1,765 submissions · 9.43%
Submitted length
7.09–7.19 in
18.00–18.25 cm
928 submissions · 4.96%
Submitted length
7.19–7.28 in
18.25–18.50 cm
418 submissions · 2.23%
Submitted length
7.28–7.38 in
18.50–18.75 cm
428 submissions · 2.29%
Submitted length
7.38–7.48 in
18.75–19.00 cm
116 submissions · 0.62%
Submitted length
7.48–7.58 in
19.00–19.25 cm
1,116 submissions · 5.96%
Submitted length
7.58–7.68 in
19.25–19.50 cm
134 submissions · 0.72%
Submitted length
7.68–7.78 in
19.50–19.75 cm
274 submissions · 1.46%
Submitted length
7.78–7.87 in
19.75–20.00 cm
195 submissions · 1.04%
Submitted length
7.87–7.97 in
20.00–20.25 cm
348 submissions · 1.86%
Submitted length
7.97–8.07 in
20.25–20.50 cm
678 submissions · 3.62%
Submitted length
8.07–8.17 in
20.50–20.75 cm
140 submissions · 0.75%
Submitted length
8.17–8.27 in
20.75–21.00 cm
81 submissions · 0.43%
Submitted length
8.27–8.37 in
21.00–21.25 cm
143 submissions · 0.76%
Submitted length
8.37–8.46 in
21.25–21.50 cm
19 submissions · 0.10%
Submitted length
8.46–8.56 in
21.50–21.75 cm
180 submissions · 0.96%
Submitted length
8.56–8.66 in
21.75–22.00 cm
20 submissions · 0.11%
Submitted length
8.66–8.76 in
22.00–22.25 cm
82 submissions · 0.44%
Submitted length
8.76–8.86 in
22.25–22.50 cm
23 submissions · 0.12%
Submitted length
8.86–8.96 in
22.50–22.75 cm
19 submissions · 0.10%
Submitted length
8.96–9.06 in
22.75–23.00 cm
168 submissions · 0.90%
Submitted length
9.06–9.15 in
23.00–23.25 cm
58 submissions · 0.31%
Submitted length
9.15–9.25 in
23.25–23.50 cm
17 submissions · 0.09%
Submitted length
9.25–9.35 in
23.50–23.75 cm
16 submissions · 0.09%
Submitted length
9.35–9.45 in
23.75–24.00 cm
7 submissions · 0.04%
Submitted length
9.45–9.55 in
24.00–24.25 cm
55 submissions · 0.29%
Submitted length
9.55–9.65 in
24.25–24.50 cm
5 submissions · 0.03%
Submitted length
9.65–9.74 in
24.50–24.75 cm
6 submissions · 0.03%
Submitted length
9.74–9.84 in
24.75–25.00 cm
9 submissions · 0.05%
Submitted length
9.84–9.94 in
25.00–25.25 cm
17 submissions · 0.09%
Submitted length
9.94–10.04 in
25.25–25.50 cm
96 submissions · 0.51%
Submitted length
10.04–10.14 in
25.50–25.75 cm
3 submissions · 0.02%
Submitted length
10.14–10.24 in
25.75–26.00 cm
2 submissions · 0.01%
Submitted length
10.24–10.33 in
26.00–26.25 cm
12 submissions · 0.06%
Submitted length
10.33–10.43 in
26.25–26.50 cm
3 submissions · 0.02%
Submitted length
10.43–10.53 in
26.50–26.75 cm
12 submissions · 0.06%
Submitted length
10.53–10.63 in
26.75–27.00 cm
9 submissions · 0.05%
A gap does not tell us its cause. Who chooses to submit, how they measure, entry mistakes and exaggeration can all contribute. We cannot separate those effects or judge an individual's honesty from this data.
How much the benchmark matters
Where you put the ruler matters. In Habous's study of 778 men, bone-pressed length averaged 1.81 cm more than skin-to-tip length in the same men. That is a cohort average, not an adjustment we can apply to everyone. Our instructions use the pubic bone, but we cannot verify how people measured. Studies also differ in who they recruit.
- Model percentile for a 7″ claim
- 99.7
- Retained claims above its 97.5th percentile
- 61%
- Model percentile for a 7″ claim
- 99.8
- Retained claims above its 97.5th percentile
- 61%
Publishes no standard deviation, so it cannot rank an individual.
- Model percentile for a 7″ claim
- 96.8
- Retained claims above its 97.5th percentile
- 34%
Mostafaei 2025 (meta-analysis) reports a standard error rather than a within-population standard deviation. It estimates the mean without providing the spread needed for this percentile model. An interval that includes another study's mean does not establish that the populations or measurement methods are equivalent.
What the filters change
A filter can move the headline. Here is how much. Each row uses the same submission snapshot and clinical benchmark. Minimal filtering sets aside only suspected repeats and exact form-limit values, with no other length or ratio cutoff. The current page selection shows the rules actually applied by this database.
| Selection | Retained | Mean cm | Median cm | Mean gap cm | Above clinical 97.5th percentile |
|---|---|---|---|---|---|
| All submissions | 19,666 | 17.16 | 17.00 | +2.82 | 33.6% |
| Current page selection | 18,719 | 17.12 | 17.00 | +2.78 | 33.6% |
| Minimal filtering | 18,719 | 17.12 | 17.00 | +2.78 | 33.6% |
| Minimal + ratio 0.2 to 3.0 | 18,591 | 17.11 | 17.00 | +2.77 | 33.6% |
| Minimal + ratio 0.5 to 1.3 | 16,980 | 17.16 | 17.02 | +2.82 | 34.2% |
| Minimal + length 7 to 27 cm | 18,072 | 16.75 | 17.00 | +2.41 | 32.3% |
| Minimal + both tighter cutoffs | 16,570 | 16.85 | 17.02 | +2.51 | 33.2% |
| Minimal + possible mixed units set aside | 17,615 | 17.14 | 17.02 | +2.80 | 34.0% |
Mean gap is the selected sample's mean minus 14.34 cm, the mean in Habous 2015 (bone-pressed). The final column uses that study's normal-model threshold of 17.99 cm. Each extra filter starts from minimal filtering, not the preceding row. Both tighter cutoffs means ratio 0.5 to 1.3 and length 7 to 27 cm. All cutoff endpoints are included. None of these ranges is a validated test of anatomy.
The possible mixed-unit comparison sets aside girth-to-length ratios from 0.2 to 0.4 or 1.8 to 2.4. These exploratory windows may include unit mistakes, but also genuine measurements. Ratios alone cannot tell them apart. They do not trigger automatic exclusion or unit correction in the revised default. A smaller gap after filtering would not prove those entries were wrong.
Loading rounding analysis…
Loading methodology…