15 cm — Percentile Ranking
Erect Length
Percentile87th
ClassificationAbove average
Z-score1.13
vs. Mean1.88 cm
Erect length distribution Distribution (cm)
Erect Girth
Percentile100th
ClassificationAbove average
Z-score3.04
vs. Mean3.34 cm
Erect girth distribution Distribution (cm)
What This Means
A erect size of 15 cm places you above the population average. This is based on the Veale et al. (2015) systematic review of 15,521 men.
How Common Is 15 cm?
Percentile87th
Men measuring shorter87%
Men measuring longer13%
About 87% of men have a erect length below 15 cm and 13% are above it — roughly 1 in 8 men measure longer. Distribution based on the Veale et al. (2015) systematic review of 15,521 men.