8 inches — Percentile Ranking
Erect Length
Percentile100th
ClassificationAbove average
Z-score4.34
vs. Mean-5.12 cm
Erect length distribution Distribution (cm)
Erect Girth
Percentile100th
ClassificationAbove average
Z-score7.87
vs. Mean-3.66 cm
Erect girth distribution Distribution (cm)
What This Means
A erect size of 8 inches places you above the population average. This is based on the Veale et al. (2015) systematic review of 15,521 men.