Penis Size Percentile Calculator
Enter your measurement and instantly see where you rank on the bell curve. 100% anonymous — no data is ever saved or sent anywhere.
Calculator Inputs
Nothing you enter is stored, sent, or logged anywhere.
Your Result
Frequently Asked Questions
How is the percentile calculated?
Your measurement is converted to a z-score using a population mean and standard deviation, then mapped onto a normal distribution (the bell curve) to produce a percentile rank.
Why does bone-pressed vs non-bone-pressed matter?
Bone-pressed is the standard used in most clinical research, making comparisons more accurate. Non-bone-pressed results can be 0.5–1 cm shorter depending on body composition.
Is girth included in the score?
In erect mode with a girth value entered, the calculator blends length (65%) and girth (35%) into a combined percentile. In flaccid mode or with no girth entered, only length is used.
Is any data stored or sent anywhere?
No. All calculations happen locally in your browser. Nothing is transmitted, saved, or logged — not even anonymously.
What population data is this based on?
The calculator uses mean and standard deviation figures drawn from published academic studies on erect and flaccid length and girth, modeled on a normal distribution.