Sex, in context

Straight answers about size, stamina, sex and pubic hair, taken from studies where researchers measured things rather than asked people to guess. Every page is interactive, so you can see exactly where you fit.

Nothing you enter on this site is sent anywhere.

Test your instincts first

Set your three guesses, then press Enter to lock them in and see the research. Most people guess high on all three.

Once you press Enter, your guesses are locked in and can't be changed.

What's on this site

How to read the numbers

Measured beats self-reported

When people report on themselves, sizes and times come out bigger. This site leads with figures where a clinician held the ruler or a couple held a stopwatch, and says so when it doesn't.

Averages hide a lot

Most of these measures are lopsided, with a few very large values. The median, the middle person, usually describes a typical man better than the mean, so you'll see both where it matters.

Who was studied

Much of the research comes from heterosexual adults in a handful of countries. Where that limits what the numbers can tell you, the page says so.