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Percentile calculator

Western Average - EXPERIMENTAL DATASET

THIS IS JUST A TEST FOR THE TIME BEING. THIS AVERAGE MIXES UP BONE-PRESSED AND NBP MEASUREMENTS.

Currently, the average includes 3 studies total:

The Wessells et al. 1996 and LifeStyles Condoms use mid-shaft girth measurements. Schneider et al. 2001 measured the width (diameter) and calculated it into a circumference by assuming a perfect cylinder and using the following formula: C = d × π


Study Avg. Erect Length (SD) Avg. Erect Girth (SD) Avg. Flaccid Length (SD) Avg. Flaccid Girth (SD) Avg. Stretched Flaccid (SD)
LifeStyles Condoms 14.93cm (2.10) 5.88" (0.83) 12.63cm (1.29) 4.97" (0.51) N/D N/D N/D N/D N/D N/D
Schneider et al. 2001 14.48cm (1.99) 5.70" (0.78) 12.41cm (1.19) 4.89" (0.47) 8.60cm (1.50) 3.39" (0.59) 9.68cm (1.26) 3.81" (0.50) N/D N/D
Wessells et al. 1996 12.89cm (2.91) 5.07" (1.15) 12.30cm (1.31) 4.84" (0.52) 8.85cm (2.38) 3.48" (0.94) 9.71cm (1.17) 3.82" (0.46) 12.45cm (2.71) 4.90" (1.07)
Western Average 14.50cm (2.21) 5.71" (0.87) 12.53cm (1.27) 4.93" (0.50) 8.70cm (1.87) 3.43" (0.74) 7.08cm (1.13) 2.79" (0.44) 12.45cm (2.71) 4.90" (1.07)
Number of people: 491 491 191 191 80

Last update: Mar. 19, 2019 (calcSD v1.9)