If you had to assign a percentile for an 18.2cm BPEL and 15cm erect girth penis, what would it be for length, girth and volume?
Executive summary
An erect BPEL of 18.2 cm places a man well above the population median length (around 13.1 cm) and near the high tail of published distributions; several sources put the 95th percentile for erect length at roughly 16.5 cm and the 97.5th near 18 cm (so 18.2 cm is ≈97–99th percentile for length) [1] [2]. A 15 cm erect girth (circumference) is substantially above the reported mean girth of ≈11.66–11.9 cm and would lie high in the girth distribution—available sources do not give an explicit girth percentile for 15 cm, but the nomograms and averages show it is clearly above typical values [2] [3].
1. Why the baseline matters: what studies say about “average”
Large clinical reviews and nomograms set the reference point: a major systematic review and follow-up reporting an average erect length near 13.12 cm and an average erect circumference near 11.66 cm is the backbone of most contemporary percentile claims [2] [4]. Several aggregator sites and calculators repeat those numbers and convert them into percentiles used by popular tools [1] [5] [6].
2. Length percentile: 18.2 cm is at the extreme high end
Published summaries note that about 85% of men have erect length between ~10 and 16 cm, and the 95th percentile sits near 16.5 cm; some sources say 97.5% of men are under ~18 cm (so an 18.2 cm BPEL would be above the 95th and around or above the 97th–98th percentile) [1] [7] [2]. Different datasets vary slightly (sample sizes and measurement technique matter), but every source shows 18.2 cm is rare and in the top few percent [1] [2].
3. Girth percentile: 15 cm circumference is well above average but exact ranking is not published
The best-cited nomogram gives an average erect circumference ~11.66 cm (and other meta-analyses report ~11.9 cm), so 15 cm is substantially larger than typical [2] [3]. The available sources do not publish a simple percentile table for girth at 15 cm, so an exact percentile cannot be cited from these reports; calculators and commercial pages will estimate it as well above the 90th percentile given the mean and typical distribution widths, but that specific percentile number is not in the current reporting (p1_s2; [10]; available sources do not mention an exact girth percentile for 15 cm).
4. Volume: not directly reported — must be inferred and treated cautiously
None of the provided sources supply a validated population distribution for penile volume or routine clinical percentile cutoffs for “volume” (available sources do not mention a standard penis volume percentile). Volume would require a geometric assumption (e.g., treating shaft as a cylinder using length and average radius from circumference) and then comparison to a volume distribution—such a distribution is not present in the cited material (available sources do not mention penis-volume percentiles) [3] [2].
5. Simple volume approximation and its limits
If you approximate the shaft as a cylinder, volume ≈ length × (girth^2) / (4π). Using 18.2 cm length and 15 cm circumference, that gives a back‑of‑envelope volume on the order of hundreds of cubic centimeters — but that is a geometrical model, not a clinical standard, and sources don’t validate its use for percentiles (available sources do not validate penis-volume calculations or population percentiles) (available sources do not mention penis-volume percentiles).
6. Why reported percentiles vary: measurement method and sampling bias
Percentiles change by whether studies used bone‑pressed BPEL, non‑bone‑pressed measures, self‑reports, or clinician measurements; many sources emphasize BPEL is the clinical gold standard and that self-reported data inflate averages [8] [9]. National and clinic samples differ; some studies measure thousands of men, others hundreds, producing small shifts in the 90–99th percentile range [2] [3].
7. Practical takeaway and caveats
Using the cited nomograms and aggregate reporting, 18.2 cm BPEL is clearly in the top several percent of men for length (~above the 95th and likely around the 97th–99th percentile), while 15 cm girth is far above average though an exact percentile is not given in available reports [1] [2] [3]. Volume percentiles are not provided in these sources; any numeric claim about volume rarity would be an extrapolation not supported by the cited studies (available sources do not mention penis-volume percentiles).
Sources quoted in this note include large systematic nomograms and contemporary summaries that form the standard benchmarks: the 2015 systematic nomogram and follow‑up reporting of mean erect length ≈13.12 cm and mean erect circumference ≈11.66–11.9 cm [2] [3], and more recent aggregate summaries and percentile claims reproduced in public calculators and reviews [1] [5] [6].