IQ score meaning
What does an IQ of 105 mean?
An IQ score of 105 falls in the Average IQ range. On a scale with mean 100 and standard deviation 15, it is approximately at the 63.1th percentile.
105
Average IQ range
63.1%
approx. percentile
90-109
range
IQ 105 interpretation
Most people score near this range because many IQ tests are normed around an average score of 100.
The percentile means that this score is higher than roughly 63.1% of the norm group and lower than roughly 36.9% of the same group.
A single IQ number should be interpreted together with the specific test, age norms, confidence interval, and the pattern of strengths and weaknesses across subtests.
Useful next pages
Compare nearby IQ scores
IQ score meaning FAQ
One IQ number is only a summary. It should be read with the test name, score range, confidence interval, age norms, and subtest pattern.
Tests can differ in tasks, timing, norms, reliability, language, and difficulty. Motivation, fatigue, and test conditions can also affect results.
A higher score can indicate stronger performance on certain cognitive tasks, but real-life success also depends on knowledge, habits, health, personality, opportunity, and goals.
Practice can improve familiarity with task types and reduce test anxiety. That does not always mean the underlying ability changed by the same amount.
Read the full score chart, percentile guide, and age-norm explanation. Together they give a more balanced view than a single score page.
Take an IQ test online
Use the BrainApps IQ test as a quick way to practice cognitive tasks and get a structured result. Treat online scores as screening information, not a clinical diagnosis.