5.5 inches — Percentile Ranking
Erect Length
Percentile70th
ClassificationAverage
Z-score0.51
vs. Mean-7.62 cm
Erect length distribution Distribution (cm)
Erect Girth
Percentile98th
ClassificationAbove average
Z-score2.10
vs. Mean-6.16 cm
Erect girth distribution Distribution (cm)
What This Means
A erect size of 5.5 inches places you near the middle of the population distribution. You are within the typical range for adult males. This is based on the Veale et al. (2015) systematic review of 15,521 men.