DrCheng's Cockulator

Scientific studies have shown a correlation between a mans erect penis length and the difference in length between his index and ring fingers on his right hand, the so called 2D:4D-ratio. The ratio is believed to be influenced by fetal exposure to the sex hormone testosterone which makes it possible to use the 2D:4D-ratio to estimate penis size. The longer the ring finger compared with the index finger, the higher the fetal exposure to testosterone and thus the larger the penis.

DrCheng's Cockulator uses a formula based on this notion to estimate penis length by taking a photo of the test subjects hand and is the most accurate penis size calculator on the market!

DrCheng's Cockulator is developed by a profesional physician. Its stream-lined design makes it easy and fun to use. Just follow these simple steps:

1.Take or upload a photo of test subjects RIGHT hand.

2.Mark the INDEX finger from fingertip to knuckle using the RED crosshairs.

3.Mark RING finger from fingertip to knuckle using the GREEN crosshairs.

*Make sure to be as accurate as possible. The more accurate you are, the more accurate will the estimation be.

4.Click done and let DrCheng's Cockulator calculate the test subjects penis length!

Compare with your friends, who has really got the biggest dick, measure your cocks without dropping no pants? Curious about your date? Just take a photo of his right hand! Or why not upload a photo of your favorite celebrity's right hand to calculate his cock size? It is all possible using DrCheng's Cockulator!


Thank you for submitting your feedback and reporting bugs and crashes! We do our best to improve DrCheng's Cockulator


*Although based on scientific studies, results are estimations and should be treated as such.