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What Is IQ Percentile?

Your IQ percentile tells you what percentage of the population scored below you on a standardized IQ test. For example, a percentile of 84 means you scored higher than 84% of people. The average IQ is set at 100, which corresponds to the 50th percentile.

What Does Your IQ Score Really Mean?

An IQ score on its own is just a number. Your percentile rank is what puts it in context — it tells you exactly where you stand compared to the rest of the world. The average IQ score is 100, which sits at the 50th percentile. That means half the global population scores above it, and half below. A score of 115 places you in the top 16%. A score of 130 puts you in the top 2%.

How Is IQ Percentile Calculated?

IQ scores follow a normal distribution with a mean of 100 and a standard deviation of 15. Your percentile is calculated based on this curve, showing what percentage of people scored below your result on a standardized cognitive assessment.

Why Use This Calculator?

Whether you've just completed an IQ test or are curious about a past result, this tool gives you instant, accurate context. No sign-up required, no hidden fees — just enter your score and see where you rank among millions of people worldwide.