IQ Test

This quick test gives a recreational estimate of reasoning performance for anyone who wants a short brain check.

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Answer each question without outside help, then submit the test when you finish. Work steadily, and avoid spending half the afternoon arguing with one pattern.

Correct answers produce a raw score, which can be compared with a reference average and spread. Estimated IQ = 100 + 15 × (raw score - reference mean) / reference standard deviation.

Worked example

Suppose you score 18, while the reference mean is 15 with a standard deviation of 3. The estimate is 100 + 15 × (18 - 15) / 3 = 115.

Common questions

Is this a clinical IQ score?

No. A short online quiz cannot replace a standardized assessment administered under controlled conditions. Use the result as a rough recreational estimate.

Can practice improve my result?

Yes. Familiarity with common question types can raise your score even if your general reasoning ability has not changed much. For a cleaner comparison, avoid repeating the same test immediately.

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