Penis Size Percentile Chart
Length, girth and volume at every percentile — from the Veale et al. (2015) nomograms of 15,521 men. Switch state, units, and measurement method below.
Drag along the curve or tap a row. The shaded share is the men below that point.
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Measurement methodbone-pressed
Bone-pressed: the ruler pressed into the fat pad to the pubic bone, as the studies measure. Measured flush to the skin instead? Switch to non-bone-pressed.
Erect percentile table
bone-pressed| Percentile | Meaning | Length | Girth | Volume |
|---|---|---|---|---|
| 1st | Bottom 1% | 9.3 | 9.1 | 61 |
| 2.5th | Bottom 2.5% | 9.9 | 9.5 | 71 |
| 5th | Bottom 5% | 10.4 | 9.8 | 80 |
| 10th | Bottom 10% | 11.0 | 10.3 | 92 |
| 20th | Bottom 20% | 11.7 | 10.7 | 107 |
| 25th | Bottom 25% | 12.0 | 10.9 | 114 |
| 30th | Bottom 30% | 12.3 | 11.1 | 120 |
| 40th | Bottom 40% | 12.7 | 11.4 | 131 |
| 50th | Median | 13.1 | 11.7 | 142 |
| 60th | Top 40% | 13.5 | 11.9 | 154 |
| 70th | Top 30% | 14.0 | 12.2 | 167 |
| 75th | Top 25% | 14.2 | 12.4 | 174 |
| 80th | Top 20% | 14.5 | 12.6 | 183 |
| 90th | Top 10% | 15.3 | 13.1 | 207 |
| 95th | Top 5% | 15.8 | 13.5 | 229 |
| 97.5th | Top 2.5% | 16.4 | 13.8 | 249 |
| 99th | Top 1% | 17.0 | 14.2 | 273 |
Length and girth in cm, volume in cm³. From the Veale et al. (2015) nomograms (15,521 men); 1st/99th and other tail values are modeled from the fitted normal distribution. Volume is a cylinder estimate (girth² × length ÷ 4π) using bone-pressed length. Wide natural variation is normal; this chart is educational, not a medical assessment.
Free to reuse under CC BY 4.0: credit Binary Decimal and link to this page.
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Frequently Asked Questions
What is the average penis size on this chart?
On the erect chart, the 50th percentile (median) length is about 13.1 cm (5.2 in) bone-pressed and the median girth is about 11.7 cm (4.6 in), based on the Veale et al. (2015) nomograms of 15,521 men. Half of men fall above these values and half below.
What size is the 90th percentile?
The 90th percentile erect length is roughly 15.3 cm (6.0 in) and 90th percentile erect girth is about 13.1 cm (5.1 in). Being at the 90th percentile means you are larger than about 90% of men. Use the interactive calculator to find your exact percentile.
How is the volume column calculated?
Volume is a geometric estimate that models the penis as a cylinder: V = girth² × length ÷ (4π). It uses the bone-pressed (anatomical) length even when the chart is showing non-bone-pressed lengths, so the volume reflects true size rather than the visible portion.
What is the difference between bone-pressed and non-bone-pressed?
Bone-pressed (BP) length presses the ruler into the pubic fat pad to the bone, which is how research studies measure. Non-bone-pressed (NBP) is measured flush against the skin, as most people self-measure, and reads shorter — typically 1–3 cm depending on body fat. Toggle the method to see the chart in either convention. Girth is unaffected.
Where does this chart data come from?
The percentile curves come from Veale et al. (2015), a systematic review in BJU International that pooled 17 clinician-measured studies covering 15,521 men — still the only source publishing full percentile nomograms. Newer, larger meta-analyses (Belladelli 2023; Mostafaei 2025) report similar averages.