What does an IQ of 100 mean?
An IQ of 100 is higher than about 49% of people. Roughly 1 in 2 people score 100 or above.
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Where 100 sits on the bell curve
IQ scores follow a bell curve with an average of 100 and a standard deviation of 15. The shaded area shows the 49% of people who score below 100.
What the "Average" range means
Scores from 90 to 109 are average. This is the most common range: about half of all people score here, so it is completely normal.
In a room of 100 people, about 51 would score 100 or higher.
Careers that often suit an IQ around 100
Based on how complex each job is. Your strongest reasoning area (abstract, numerical or verbal) changes the picture a lot, and the full test report matches careers to your own strengths.
How exact is a single score?
No test measures IQ to the exact point. A score of 100 on a short test is best read as a range of roughly 95 to 105. That's why the report on this site gives a confidence band as well as a score.
Nearby scores
| IQ | Higher than | Range |
|---|---|---|
| 94 | 33% | Average |
| 96 | 38% | Average |
| 98 | 43% | Average |
| 102 | 54% | Average |
| 104 | 59% | Average |
| 106 | 64% | Average |
Questions people ask
Is 100 a good IQ score?
An IQ of 100 is right in the average range, which is where about half of all people score. It is a perfectly normal result.
What percentile is an IQ of 100?
An IQ of 100 is at about the 49th percentile: it is higher than roughly 49% of the population.
How rare is an IQ of 100?
About 1 in 2 people score 100 or higher.
Can my IQ score change?
Scores on any single test vary by a few points from day to day because of sleep, focus and familiarity with the question types. Underlying reasoning ability is fairly stable in adults, but a single result should always be read as a range rather than an exact number.
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