Penile Size Percentile Calculator
Use this free penile size percentile calculator to see where a measurement falls compared with published averages.
Health information notice: Results are estimates based on general formulas and may not reflect individual circumstances. This tool is not a diagnosis or substitute for personalized advice from a qualified healthcare professional.
How the penile size percentile calculator works
Percentile comes from a normal distribution using meta-analysis averages: erect length 13.12 cm (SD 1.66) and flaccid length 9.16 cm (SD 1.57). Measure along the top, pressing to the pubic bone.
Frequently asked questions
Is size related to sexual function?
Not in the way most people worry about. Normal variation is wide, and concerns are worth discussing with a doctor.
Results are estimates for general information only. They are not a substitute for professional advice where applicable. Found a mistake? Report an error.