Enter anything about yourself and see how rare or common it is among people worldwide
Body & Mind
Identity & Traits
World & Life
Pick any category above, enter a value, and see roughly how rare or common it is — then check another, and another. There are hundreds of possible comparisons.
How Rare Is That? compares anything you enter — height, weight, age, IQ, blood type, eye color, birth month, native language, education level, country, profession, hobby, even your first name — against approximate global population statistics, and tells you what percentage of people share it or fall above/below it.
Numeric traits like height or IQ are compared using a bell-curve (normal distribution) model built from rough global averages; age uses an approximate world population-by-age breakdown instead, since ages aren't spread out evenly. Categorical traits like blood type, country or profession use approximate population-share estimates, ranked against every other option in that category.
These are deliberately rough, for-fun estimates compiled from general demographic knowledge — not precise scientific or census-grade data — so treat every result as a fun approximation rather than a rigorous statistic. Nothing you enter is sent anywhere; every calculation happens locally in your browser.