What does an IQ of 100 mean?
An IQ of 100 sits at the exact centre of the scale. It is not a high or low score, it is the reference point everyone else is measured against.
IQ tests are designed so that the average result is always 100, with most people clustered close to it. About two thirds of everyone scores between 85 and 115, so a score of 100 places you right in the middle of that large, typical group.
In practical terms, an IQ of 100 means your measured reasoning, memory, and processing speed are close to what is typical for the general population. It is the single most common range of scores, not a weakness.
What an IQ of 100 does not tell you
A score of 100 does not cap what you can learn or achieve. IQ tests estimate a narrow slice of reasoning on a given day; motivation, knowledge, effort, and circumstances shape outcomes far more than a single number.
Common questions
Is an IQ of 100 good?
It is the literal average, so it is neither good nor bad. It means your score is typical for the population. Most people score within 15 points of it.
What percentage of people have an IQ of 100?
Scores cluster around 100, and roughly two thirds of people fall between 85 and 115. A score of exactly 100 is the most common region of the distribution.
Other IQ scores
Testrize provides a free, educational estimate of cognitive skills. It is not a clinical or diagnostic IQ test, and online scores should not be used for official purposes.