calcSD

Percentile calculator

Dataset List

Detailed information about the datasets in case you need it for whatever reason. The numbers before each dataset's name represents the index number it occupies on the site. If there's a few details missing, that's because full access to a few of these studies is paid, so there's some information I can't reach.

Note: calcSD was designed to easily accept the insertion of different studies, should more reliable ones appear in the future. Please do contact me when/if that happens.

Words of importance:

  1. Veale et al. 2015

  2. Habous et al. 2015
    • Data:
      • Authors: Mohamad Habous, Alaa Tealab, Ben Williamson, Saleh Binsaleh, Sherif El Dawy, Saad Mahmoud, Osama Abdelwahab, Mohammed Nassar, John P. Mulhall, David Veale, Gordon Muir
      • Source: https://www.ncbi.nlm.nih.gov/pubmed/25904106
      • Countries: Saudi Arabia
      • Measurements: Bone-pressed
      • n: 778
    • Averages:
      • Avg. Erect Length: 14.34cm (SD 1.86) - 5.65" (SD 0.73)
      • Avg. Erect Length: 12.53cm (SD 1.93) - 4.93" (SD 0.76) (non bone-pressed)
      • Avg. Erect Girth: 11.66cm (SD 1.10) - 4.59" (SD 0.43)
    • Volumetric Estimates:
      • Avg. Volume (in cm³/ml): 150.92ml (SD 50.13)
      • Avg. Volume (in US fl oz): 5.1 fl oz (SD 1.70)
      • Error Margin: 3.41ml
    • Notes:
      • None.

  3. Hungfun's Average (2013)
    • Data:
    • Averages:
      • Avg. Erect Length: 14.61cm (SD 2.10) - 5.76" (SD 0.83)
      • Avg. Erect Girth: 11.87cm (SD 1.37) - 4.67" (SD 0.54)
      • Avg. Flaccid Length: 8.58cm (SD 1.73) - 3.38" (SD 0.68)
    • Volumetric Estimates:
      • Avg. Volume (in cm³/ml): 163.81ml (SD 44.86)
      • Avg. Volume (in US fl oz): 5.54 fl oz (SD 1.52)
      • Error Margin: 2.16ml
    • Notes:
      • This dataset is an average of different studies, meaning it doesn't actually measure anything by itself.
      • This dataset uses mixed bone-pressed and non bone-pressed measurements, as well as mixed base-shaft and mid-shaft measurements.

  4. Herbenick et al. 2013
    • Data:
    • Averages:
      • Avg. Erect Length: 14.15cm (SD 2.66) - 5.57" (SD 1.05)
      • Avg. Erect Girth: 12.23cm (SD 2.23) - 4.81" (SD 0.88)
    • Volumetric Estimates:
      • Avg. Volume (in cm³/ml): 168.42ml (SD 70.53)
      • Avg. Volume (in US fl oz): 5.7 fl oz (SD 2.38)
      • Error Margin: 5.53ml
    • Notes:
      • None.

  5. calcSD Average (2017)
    • Data:
    • Averages:
      • Avg. Erect Length: 13.29cm (SD 1.88) - 5.23" (SD 0.74)
      • Avg. Erect Girth: 11.55cm (SD 1.53) - 4.55" (SD 0.60)
      • Avg. Flaccid Length: 9.16cm (SD 1.57) - 3.61" (SD 0.62)
      • Avg. Flaccid Girth: 9.31cm (SD 0.90) - 3.67" (SD 0.35)
    • Volumetric Estimates:
      • Avg. Volume (in cm³/ml): 141.08ml (SD 42.74)
      • Avg. Volume (in US fl oz): 4.77 fl oz (SD 1.45)
      • Error Margin: 2.45ml
    • Notes:
      • This dataset is an average of different studies, meaning it doesn't actually measure anything by itself.
      • This is a temporary dataset I made to merge Veale's and Habous' studies, so as to get more accurate data. This is not an medical study.

  6. /r/BDP's Average (2016)
    • Data:
    • Averages:
      • Avg. Erect Length: 18.36cm (SD 2.08) - 7.23" (SD 0.82)
      • Avg. Erect Girth: 14.37cm (SD 1.86) - 5.66" (SD 0.73)
      • Avg. Flaccid Length: 10.54cm (SD 2.48) - 4.15" (SD 0.98)
    • Volumetric Estimates:
      • Avg. Volume (in cm³/ml): 301.70ml (SD 85.70)
      • Avg. Volume (in US fl oz): 10.20 fl oz (SD 2.90)
      • Error Margin: 4.99ml
    • Notes:
      • This is a survey that happened on a subreddit. This is mostly here "because why not?" and shouldn't be used as a real study.

  7. Chen et al. 2014
    • Data:
    • Averages:
      • Avg. Erect Length: 12.9cm (SD 1.3) - 5.08" (SD 0.51)
      • Avg. Erect Girth: 10.5cm (SD 0.9) - 4.13" (SD 0.35)
      • Avg. Flaccid Length: 6.5cm (SD 0.7) - 2.56" (SD 0.28)
      • Avg. Flaccid Girth: 8.0cm (SD 0.8) - 3.15" (SD 0.31)
      • Avg. Stretched Flaccid Length: 12.9cm (SD 1.2) - 5.08" (SD 0.47)
    • Volumetric Estimates:
      • Avg. Volume (in cm³/ml): 113.18ml (SD 22.52)
      • Avg. Volume (in US fl oz): 3.83 fl oz (SD 0.76)
      • Error Margin: 0.82ml
    • Notes:
      • This study uses only one decimal place for its measurements (cm).