Question 1

Is this online IQ test accurate?

Accepted Answer

It gives a reasonable estimate of your reasoning ability, but it is not a clinical assessment. Professional tests such as the WAIS are longer, supervised and individually normed, so treat our result as a range of about ±7 points.

Question 2

How is my IQ calculated?

Accepted Answer

We count correct answers out of 40, compare that raw score with an assumed adult distribution (mean 22, standard deviation 6.5) and convert it to the IQ scale where the mean is 100 and the standard deviation is 15.

Question 3

Can IQ change over time?

Accepted Answer

Yes, modestly. Education, health, sleep and familiarity with test formats can shift scores by several points, and children's scores are less stable than adults'.

Question 4

How long does the test take?

Accepted Answer

You have 20 minutes for 40 questions. The test submits automatically when the timer reaches zero.

Question 5

Is the test free?

Accepted Answer

Yes. The test and your results are completely free. An emailed summary report is optional.

Question 6

What is a good IQ score?

Accepted Answer

Anything from 90 to 109 is average. 110–119 is high average, 120–129 superior, and 130 or above is usually considered gifted.

Question 7

What does percentile mean on my result?

Accepted Answer

Your percentile shows the share of people expected to score below you. A percentile of 84 means you scored higher than about 84% of test takers.

Question 8

Do you store my answers?

Accepted Answer

Your answers stay in your browser's local storage so you can resume an unfinished test. Scoring happens on your device and we never receive your answers.

Question 9

Can I retake the test?

Accepted Answer

Yes, as often as you like. Bear in mind that practice effects usually raise scores a little on repeat attempts.

Question 10

Is this test suitable for children?

Accepted Answer

It is designed and scored for adults aged 16 and over. Children should be assessed with age-normed tests by a qualified professional.

Question 11

Can this test qualify me for Mensa?

Accepted Answer

No. Mensa only accepts supervised tests or approved prior evidence. A high score here may suggest it is worth sitting their official test.

Question 12

What categories does the test cover?

Accepted Answer

Logical reasoning, pattern recognition (matrices), numerical sequences and spatial reasoning — ten questions each.

Question 13

Why does the test have a time limit?

Accepted Answer

Speed is part of how reasoning tests are normed, and a fixed limit keeps results comparable between test takers.

Question 14

Can I share my result?

Accepted Answer

Yes. Your results page has a unique link plus share buttons for X, Facebook and WhatsApp. The link only contains your score, not your answers.

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