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Test your intelligence with 20 logic and pattern questions
Disclaimer: This is a fun, simplified intelligence estimate for entertainment purposes only. It is NOT a clinically validated IQ test. For an accurate assessment, consult a licensed psychologist. Real IQ tests are comprehensive, standardized, and individually administered.
| Score | Standard deviations | Percentile | Share of population |
|---|---|---|---|
| Below 70 | Below −2 | Under 2nd | 2.2 % |
| 70–79 | −2 to −1.4 | 2nd–9th | 6.7 % |
| 80–89 | −1.4 to −0.7 | 9th–25th | 16.1 % |
| 90–109 | −0.7 to +0.6 | 25th–73rd | 49.5 % |
| 110–119 | +0.6 to +1.3 | 73rd–90th | 16.1 % |
| 120–129 | +1.3 to +2 | 90th–98th | 6.7 % |
| 130 and above | +2 and above | 98th and up | 2.2 % |
| 145 and above | +3 and above | 99.9th | 0.13 % |
| Test | Measures | Administered how |
|---|---|---|
| WAIS-V / WAIS-IV | Verbal comprehension, visual-spatial, fluid reasoning, working memory, processing speed | One-to-one by a trained psychologist, 60–90 min |
| WISC-V | The same domains, ages 6–16 | One-to-one |
| Stanford–Binet, 5th ed. | Five factors, verbal and non-verbal | One-to-one |
| Raven’s Progressive Matrices | Fluid reasoning only, largely culture-reduced | Can be group-administered |
| Cattell Culture Fair | Fluid reasoning | Group |
An online quiz is a pattern-recognition exercise, and it is genuinely fun. What it is not is a psychometric instrument. A real IQ score requires norms — a large, demographically representative standardisation sample — and no free web test has one. It also requires standardised conditions: timed, supervised, one attempt, no phone. Online tests are also uniformly generous, because a test that returns 96 does not get shared. Treat the number as entertainment and the puzzles as the point.
Measured IQ rose by roughly 3 points per decade through most of the twentieth century across dozens of countries — documented by James Flynn. Because tests are periodically re-normed to keep the mean at 100, this is invisible unless you compare against old norms: a person scoring 100 today would have scored around 118 against 1950 norms. The gains were largest on abstract-reasoning subtests such as Raven’s and smallest on vocabulary and arithmetic, which points to schooling, cognitive complexity of daily life, nutrition and test familiarity rather than any change in underlying capacity. Since the 1990s the effect has stalled or reversed in several developed countries. Either way, it demonstrates that the score is not a fixed biological constant.
Scores between 90 and 109 are considered average and include about half the population. The distribution is deliberately centred on 100 with a standard deviation of 15, so 68 % of people fall between 85 and 115.
Yes — it is two standard deviations above the mean and puts you at roughly the 98th percentile. It is the common threshold for gifted programmes and for Mensa membership.
No. A valid score requires a large representative standardisation sample and supervised, timed, single-attempt conditions, none of which a web quiz has. Online tests also tend to score generously. Enjoy the puzzles and ignore the number.
Measured scores respond to education, sleep, health, test familiarity and practice, and population-level scores rose about 3 points a decade for most of the twentieth century. Training on a specific task improves that task more than it improves general reasoning, so gains from brain-training apps rarely transfer.
Academic achievement most strongly, at a correlation of roughly 0.5, and job performance at 0.3 to 0.5 with the link strengthening as jobs get more complex. It predicts creativity, emotional skill, motivation and integrity poorly, and those often matter more.
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