Sex, in context
Straight answers about size, stamina and sex, 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
Make three guesses, then compare them with the research. Most people guess high on all three.
What's on this site
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Size
Set a length and girth to see where it ranks, compare it with any size you choose, and find condoms that fit.
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Myths and records
The biggest claims ever made, checked against the evidence, and the most repeated myths rated true or false.
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Stamina
How long sex really lasts by the stopwatch, how long women take to orgasm, and what actually helps.
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Frequency
How often people have sex at different ages and across the decades, and the point where more stops making people happier.
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.