IQ & Cognitive Score
Enter a tested IQ or take a short matrix-reasoning quiz. Scores are normed to mean 100 and SD 15, so 68% of people fall between 85 and 115. Self-reported IQ runs 10 to 15 points high on average.
Enter a score from a real test. Scales like the Wechsler put the mean at 100 and one standard deviation at 15. Self-reported scores run 10 to 15 points high on average; the quick estimate tab is five questions and only a rough pointer, not a test.
An IQ of
100
Higher than 50% of people on a scale with mean 100 and SD 15.
Your IQ
100
Average
Population avg
100
Average
IQ distribution: Wechsler scale
IQ scales are normed so 100 is the mean by construction. About 68% of people score between 85 and 115, 2.3% above 130, and 0.1% above 146. The percentile here is read straight off that curve; it says nothing about whether the number you typed is accurate.
In context
IQ tests measure a specific kind of reasoning: pattern recognition, abstract logic, and processing speed. They do not measure creativity, emotional intelligence, wisdom, or domain expertise. The Flynn Effect shows average IQ scores have risen ~3 points per decade since the 1930s, suggesting IQ reflects learned cognitive skills more than fixed capacity. Self-reported IQ tends to be inflated by 10–15 points on average, which is why this module offers a brief estimation quiz as an alternative.
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Look up a value: Is 120 IQ good? and other percentile lookups.
Related tests
About this test
Two ways in: enter a score from a test you have taken, or do the six-question matrix-reasoning quiz, which is normed to the same scale. IQ is defined to be normal with mean 100 and SD 15 (the Wechsler convention), so the percentile is pure arithmetic: 115 is the 84th percentile, 130 the 98th, 145 the 99.9th.
About 68% of people score between 85 and 115 and 95% between 70 and 130. Only 2.3% score above 130 and 0.1% above 146. The on-site quiz is a handful of Raven-style matrices; it gives a rough estimate, not a clinical result.
Is 120 IQ good?
120 is the 91st percentile: higher than about 9 in 10 people. It is the lower edge of what the Wechsler scales label superior. The gap from 120 to 130 (98th percentile) is one further SD of 15.
What IQ is genius?
There is no clinical genius cut-off. Mensa admits the top 2%, which is about 130 on an SD-15 scale. 145 is the top 0.1%, about 1 in 740. Scores above 160 are rarer than most tests can measure reliably.
What is the average IQ?
100, by construction. Tests are re-normed so the mean of the reference population is 100 and the SD is 15. Raw scores rose about 3 points a decade through most of the 20th century (the Flynn effect), which is why re-norming is needed.
Percentiles above come from the same parameters the IQ & Cognitive Score module uses. See the methodology for how they are calculated.