Direct answers to common questions.
The FAQ explains what the calculators mean, which populations they use, why some topics do not receive scores, and how privacy works.
Is “average” the same as “normal”?
No. Average is a mathematical center or commonly observed value in a particular dataset. Normal can include a much wider range, and a trait can be uncommon without being unhealthy.
Are the body calculators accurate?
They use linear interpolation between published NCHS percentiles. Results are approximate because the official tables publish selected points rather than a continuous percentile function.
Why are most body statistics U.S.-based?
The selected NCHS data are nationally representative, measured in person, recent, public, and methodologically transparent. They should not be silently generalized to every country or ancestry group.
Do you save my measurements or income?
No. The supplied site performs calculations in browser JavaScript and includes no analytics, account, database, cookie, or form endpoint.
Why is there no puberty score?
Puberty is a process with variable timing and sequence. Turning it into a leaderboard would create false precision and encourage anxious checking.
Why is adult anatomy on a separate page?
The separation lets adults reach deeper research at PenisStats while keeping youth guidance free from intimate calculators and adult funnels.
Does a testosterone chart tell me whether I need treatment?
No. Symptoms, timing, repeat testing, assay, laboratory range, medication, and clinical context matter. The chart is educational only.
Is being below average bad?
No. A percentile describes position in a reference distribution. It does not grade worth, attractiveness, health, morality, or potential.