About Dickle

What it is

Dickle is a quick, free browser game you play once a day. Each day you get one country and you try to guess the average penis size published for it, in centimetres. You get five tries, with higher-or-lower hints after each guess, and you win if you land within 0.5 cm. The country changes every day at midnight your time.

If you like Wordle or Globle, this is the same kind of thing: a short daily puzzle and a streak you'll want to keep going. When you're done, you can share your result with friends.

Which measurement it uses

Dickle uses stretched length: the flaccid penis extended to its full length and measured from the pubic bone to the tip. It sounds like an odd choice until you look at the literature — it's the number urology studies actually report, because a clinician measures it with a ruler rather than relying on self-reported figures, which run notoriously high. It also tracks erect length closely, which is why it's the standard clinical stand-in.

Sticking to one measure is the only thing that makes the countries comparable at all. Mixing a self-reported erect figure from one country with a clinician-measured stretched figure from another would tell you about the researchers, not the populations.

The pooled worldwide mean is 12.93 cm, from Belladelli et al., World J Mens Health, 2023 (55,761 men).

Where the numbers come from

Every country in the game is tied to a specific published study, and the reveal screen names it: authors, year, how many men were measured, and the method. Most come from peer-reviewed urology journals — European Urology, BJU International, the International Journal of Impotence Research, Andrologia and others.

Read them loosely, though. Sample sizes range from about fifty men to several thousand. Some studies press the ruler into the pubic bone and some don't, which alone shifts a figure by a centimetre or more. Several are decades old. And the spread between individual men inside any one country is far larger than the gap between any two countries on this list, so none of this says anything about anyone in particular. Where a figure circulates widely but we could not trace it to a primary study, the reveal screen says so rather than dressing it up.

Who makes it

Dickle is an independent side project. If you have a question, spot a mistake, or can point us at a better study for a country, email flaviuscojocaru19@gmail.com or see the contact page.