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.