Free Online IQ Test
Test your logical thinking and see how you compare with others.
- 40 questions
- Allow about 30 minutes
- Instant results
100% free, including the complete result. No payment, no sign-up, no email required.
- IQ score
- Percentile
- Time analysis
- Comparisons
IQ-style score · Not a clinical diagnosis.
340,000+ completed • Passed quality checks: 90,000+
4 / 5 (260)
Try a practice question
Optional practice, separate from the 40 test questions.
| 1 | 2 | 3 | |
|---|---|---|---|
| 1 | 1 | 2 | 3 |
| 2 | 2 | 3 | 4 |
| 3 | 3 | 4 | ? |
Count the dots in each cell. What changes as you move right or down?
How does the 40-question test work?
- Find the pattern in the shapes.
- Choose one of eight answers, then press Next.
- Answer 40 questions and see your free result.
Example of your free result
Illustrative values only, not a real person’s result. Your score and percentiles depend on your performance and our participant dataset.
- Global percentile
- 84th
- Time spent:
- 30:00
- Correct answers:
- 32/40
Worldwide IQ distribution standings:
Example timing for all 40 questions
Average per question: 45 seconds
84.1 is an example percentile: about 84% of reference participants would rank below it. Comparisons describe our online dataset, not the whole population.
What your score means
Participants choose to take this online test; they do not represent the whole population. The score is an estimate, not a clinical assessment.
More about your result
Equal raw scores share a percentile. Age-group percentiles are mapped to an IQ-style scale using the normal distribution with mean 100 and standard deviation 15.
There is no time limit. Timing runs from when each question is ready until you confirm your answer, including selection changes. Timing supports the quality checks.
Explore our test results
See how results vary across groups in our participant dataset.
Frequently asked questions
Is the test and result really free?
100% free, including the complete result. No payment, no sign-up, no email required. The test and full result are free. You can optionally buy additional explanations in the separate practice section.
How does the 40-question test work?
40 questions on patterns and logical reasoning. No preparation needed. Allow about 30 minutes in a quiet place. There is no fixed time limit. Your completion time is recorded and used when scores tie.
How accurate is this IQ test?
Equal raw scores share a percentile. Age-group percentiles are mapped to an IQ-style scale using the normal distribution with mean 100 and standard deviation 15. Participants choose to take this online test; they do not represent the whole population. The score is an estimate, not a clinical assessment.
What is considered an average IQ?
IQ 100 is the mean and sits at percentile rank 50. About 68% of people score between 85 (percentile 16) and 115 (percentile 84). Theoretical normal distribution: mean 100, standard deviation 15. These percentages describe this model, not UniversalIQTest.com participants or a measured population.
Why is there no time limit?
There is no time limit. Timing runs from when each question is ready until you confirm your answer, including selection changes. Timing supports the quality checks.
Can I retake the test, and which attempts count?
Statistics use the first observed attempt that passes the quality checks. If an earlier attempt fails, a later attempt cannot replace it. Known repeats and uncertain identity matches are excluded. Browser signals cannot prove that every participant is a different person.