To find your IQ percentile, you can compare your IQ score to a standardized IQ percentile chart. Here’s a simple way to estimate your percentile: If you’ve taken an IQ test, look up your score on an IQ percentile chart (such as the one below). The percentile tells you what percentage of people scored lower than you. Example: If you have an IQ of 120, you are likely in the 91st percentile, meaning you score higher than 91% of the population.