How Big Is Big? Small, Average & Large
Where do the labels actually begin? These thresholds come from clinician-measured data (Veale 2015), expressed as percentiles of erect length.
0255075100
Small Below average Average Above average Large Very large
Small
10.4 cm / 4.1 in
P5
Below average
11.9 cm / 4.7 in
P22.5
Average
13.1 cm / 5.2 in
P50
Above average
14.4 cm / 5.7 in
P77.5
Large
15.7 cm / 6.2 in
P94
Very large
17.0 cm / 6.7 in
P99
avg
8 cm13 cm18 cm
Population share by erect length (Veale 2015, n=15,521).
| Category | Erect length (from) | Percentile |
|---|---|---|
| Small | < 11.0 cm / 4.3 in | 0–10 |
| Below average | 11.0 cm / 4.3 in – 12.5 cm / 4.9 in | 10–35 |
| Average | 12.5 cm / 4.9 in – 13.8 cm / 5.4 in | 35–65 |
| Above average | 13.8 cm / 5.4 in – 15.2 cm / 6.0 in | 65–90 |
| Large | 15.2 cm / 6.0 in – 16.5 cm / 6.5 in | 90–98 |
| Very large | > 16.5 cm / 6.5 in | 98–100 |
Percentiles assume a normal distribution. 'Small' here is statistical, not the clinical micropenis cutoff (~9.3 cm).
Where do you actually rank?
Open →