Official IQ Test

Take the official Worldwide IQ Test to find out your IQ score fast with our validated and culture-fair online test and compare your results against the world.

IQ Score Distribution in the United States

There are a lot of intelligent citizens living out in the United States. Our website ranks the United States in position 76 on our list of countries with the highest average intelligence quotient. The average score is 96.54, which is great!

By comparison, Canada is currently in position 48 with an average score of 99.45.

Our test currently has a global mean of 99.70 and a standard deviation of 14.87 among all the people who have challenged their cognitive abilities with our test. We aim to calibrate the test to a mean of 100 and a standard deviation of 15 to provide every test taker with the most accurate results possible. This is a fully standardized test that is presented in exactly the same way to everyone, no matter which country they are in.

Which countries have the most intelligent people in the world? We decided to publish some of our data on a country-by-country basis to show exactly how the general intelligence of your country compares to others.

For simplicity, the symmetrical Gaussian curve has been used in the drawing of the graphs even though, in some cases, the skew-normal distribution would describe some countries' results better.


Select Country Average IQ Standard Deviation


Select Country Average IQ Standard Deviation

The results may not reflect the country's real average IQ and intellectual ability due to the distortion present in the sample.

Most Intelligent Countries in the World in 2023

The Worldwide IQ Test website ranks the countries with the highest average IQ in the world based on our official IQ test results. By far the most intelligent countries in the world are Japan having an astonishing average IQ score of 112.42 among the test-takers, with the citizens of Taiwan (111.11), South Korea (110.93), and Hungary (110.87) close behind.

World IQ

The results may not reflect the country's real average IQ due to the distortion present in the sample - not everyone in the country will have taken our IQ test. However, the results indicate which country generally has the most brilliant population on average. The cognitive ability of the test taker along with abstract reasoning skills, spatial reasoning ability, and skill at problem-solving will reveal your IQ level.

Where do you think you rank compared to the rest of the world? Do you have a high IQ? Please find out your individual score by taking our reliable IQ test now.

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Worldwide IQ Test

# Country Average IQ Standard Deviation
1. Japan 112.42 12.26
2. Taiwan 111.11 11.52
3. South Korea 110.93 14.34
4. Hungary 110.87 14.61
5. Italy 110.55 16.22
6. Iran 110.36 13.92
7. Hong Kong 109.99 13.16
8. Serbia 109.57 16.80
9. Finland 109.16 18.44
10. Vietnam 108.28 12.82
11. Slovenia 108.01 13.56
12. Montenegro 107.50 15.46
13. Czech Republic 107.22 15.12
14. Turkey 107.15 16.81
15. Croatia 107.05 13.35
16. Norway 106.97 18.92
17. Austria 106.64 14.65
18. Romania 106.28 14.88
19. Sweden 106.26 16.63
20. Slovakia 106.24 13.06
21. Switzerland 105.46 14.26
22. Cyprus 105.44 15.69
23. Germany 105.30 14.36
24. Bosnia and Herzegovina 105.29 16.44
25. Israel 104.97 15.60
26. Greece 104.75 15.30
27. Singapore 104.35 14.33
28. Bulgaria 103.95 13.64
29. Netherlands 103.86 13.39
30. Mongolia 103.22 12.52
31. Belgium 102.73 13.02
32. Sri Lanka 102.60 12.66
33. Poland 102.60 15.92
34. Peru 102.58 13.05
35. Spain 102.57 13.73
36. Malaysia 102.18 13.16
37. Denmark 102.14 14.63
38. Luxembourg 101.92 13.99
39. Macedonia 100.86 13.00
40. Iraq 100.66 12.21
41. Estonia 100.58 13.40
42. New Zealand 100.41 13.78
43. France 100.41 12.85
44. Lebanon 100.00 12.80
46. Tunisia 99.63 12.20
47. Belarus 99.62 12.30
48. Canada 99.45 12.80
49. India 99.37 11.28
50. Albania 99.36 12.43
51. Morocco 99.34 12.66
52. Portugal 99.20 11.94
53. Lithuania 99.03 14.83
54. Myanmar 98.93 9.67
55. Nepal 98.85 10.75
56. Egypt 98.56 12.14
57. Argentina 98.54 13.68
58. Jordan 98.36 12.13
59. Ireland 98.33 11.34
60. Russia 98.25 12.11
61. Georgia 98.20 12.83
62. Ecuador 98.19 12.39
63. Australia 98.02 12.21
64. Algeria 97.98 12.57
65. Cuba 97.92 10.09
66. Chile 97.86 13.01
67. United Kingdom 97.55 12.39
68. Bolivia, Plurinational State of 97.24 11.97
69. Uruguay 97.16 12.20
70. Azerbaijan 97.10 11.74
71. United Arab Emirates 97.06 12.39
72. Cambodia 97.04 11.47
73. Venezuela 96.90 11.46
74. Philippines 96.82 11.45
75. Latvia 96.73 11.80
76. United States 96.54 12.56
77. Bangladesh 96.52 11.24
78. Moldova 96.50 11.88
79. Saudi Arabia 96.46 11.53
80. Mexico 96.43 12.47
81. Armenia 96.43 11.62
82. Kuwait 95.90 13.36
83. Colombia 95.85 12.54
84. South Africa 95.67 11.42
85. Ethiopia 95.53 10.59
86. Kazakhstan 95.44 11.57
87. Nigeria 95.24 9.70
88. Ukraine 94.94 11.54
89. Kenya 94.90 9.24
90. Brazil 94.50 12.65
91. Costa Rica 94.49 10.76
92. Indonesia 94.39 10.93
93. Cameroon 94.36 10.93
94. Tajikistan 94.10 10.08
95. Nicaragua 93.94 8.81
96. Guatemala 93.89 8.37
97. Uzbekistan 93.71 10.99
98. Pakistan 93.41 10.47
99. Dominican Republic 93.19 8.54
100. Honduras 92.75 10.44
101. Thailand 92.69 12.86
102. Kyrgyzstan 92.58 10.77
103. El Salvador 91.73 13.21
104. Panama 91.60 13.17
105. Laos 91.34 11.25
106. Angola 91.17 10.25
107. Mozambique 90.68 12.04
108. Paraguay 90.34 12.39

Show all →

The results may not reflect the country's real average IQ and intellectual ability due to the distortion present in the sample.

Can You Outperform Other People in the United States?

The average IQ in the United States is 96.54, but there's more behind that number than you might at first imagine. It's unlikely that anyone actually scored exactly 96.54 in our IQ test, but some will have scored around that number. Others will have scored a little below; others will have scored a little above.

Some people will have scored much lower, while others will have scored much higher. If you live in the United States and score around 96.54, you've got an average IQ score. This means there are people with higher scores and people with lower scores all around you.

If your IQ score is 150, there's a strong chance that there aren't many people above you, and you're one of the most intelligent people in your country. But of course, there's a lot of space in-between 96.54 and 150 - or higher!

By taking our reliable IQ test, you'll be able to see exactly where you stand in the world. Your score will also affect the overall average, which means that you could impact where your country sits on the global IQ table - wouldn't it be amazing to make that kind of difference?

Maybe you'll find out your IQ is higher than you thought when you take an IQ test. Imagine the confidence boost that could give you!

Perhaps you'll discover you've got an average IQ score - but if you live in a super-intelligent country, is that really something to worry about?

You may even find your IQ score is lower than you hoped, but don't worry - there are plenty of things you can do to boost your IQ, from eating right to simply practicing. Check out the articles on our website for some ideas! A low IQ or high IQ doesn't always affect your success in life, but being aware of your intellectual ability will help you to maximize the abilities you possess.

Test Preparation

As with many things, preparation is the key to success. A number of factors can affect your performance in an IQ test (or any other kind of exam), so make sure you stack the odds in your favor. Your body and mind perform best when you are well hydrated, have eaten something that provides fuel for your body, and you have slept well.

Being thirsty, eating junk food, and sleep deprivation are sure ways to score lower than you expected. Furthermore, taking the quiz in a quiet room when you can concentrate and not be distracted will undoubtedly help with your score.

Finally, just relax. Stress will cause you to struggle to find the right answers, so the more relaxed and calm you can be when taking it, the better.

Skill Testing in Organizations

Knowing your own personal IQ score is one thing but knowing how potential employees might respond in certain situations that require intelligence and lateral thinking can be extremely helpful for organizations.

Testing is commonly used during the recruiting process in many businesses. Intelligence and psychological testing will let a company know that every employee is suited to the task they might be employed for and knowing what someone is capable of before signing a contract can help any organization find people who fit well.

Skill testing in organizations

It doesn't just have to be during recruitment, either. Employees can be tested to see if they are suitable for a different position within the organization, to find out how they respond under pressure, or to understand if they truly are problem solvers.

The official version of our test can be used by organizations as a part of their psychological testing program or by recruitment companies to build a full profile of the people they are working with. If you are testing just a few people every month, then we're confident that you'll find our low price of $11.99 (USD) to be perfect, but if your organization needs to test 10, 100, 500, or 1000 people, we're happy to provide an even better deal for you.

We can provide a significant discount for recruitment companies who require volume pricing based on your exact needs. Get in touch with our support team today to find out what we can offer you, and how you can make sure that all your applicants obtain positions they are well-suited to.

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Discover Your Ideal Job

The world of work does not start and end with your employer or an agency knowing everything about your intelligence. The fact of the matter is that specific jobs and positions are better suited to people with particular IQ ranges, and it has been shown in studies that people within these ranges excel at certain types of jobs.

It's not as simple as having a lower intelligence quotient means manual labor, while higher intelligence quotient means you should be a scientist – it's more a matter of how comfortable you feel in a particular role based on your problem-solving ability.

Discover your ideal job

Our IQ tests will help you to find your score and understand how it can help you to get a job that will suit you in every way. You'll find that you are more fulfilled and happier when working in a position that was made for your skills and talents.

Many people simply fall into a job without much thought or planning but using your IQ score as a benchmark to find your perfect position will give you the best chance to find a rewarding job.

Challenge Your Friends and Family

Friendly competition between friends and family members is common and can manifest in many different forms. From playing board games and cards to tests of strength or races on foot, at one time or another, everyone has indulged in a friendly challenge.

Taking an IQ test is a fast and accurate way to determine who has the highest score. Instant results will give the winner instant bragging rights, and it is all down to the intelligence of the individual.

Challenge your friends and family

Intelligence is not a fixed number, and so re-running the challenge every so often is a great idea. Those involved can practice between the tests and improve their intelligence (and chances of winning) by preparing well.

Competing with your peers to discover who has the highest intelligence quotient is a great way to pass the time and will certainly cause some discussion for the people who are involved. Our full test is a great way to spend some time together and gain some beneficial information at the end of it. Just make sure not to distract each other too much, as it is never fair to cheat on an IQ test!

Why our questions are Culture-fair

Everyone grows up in a different environment and has different abilities, but this does not correlate directly to intelligence. The ancient Egyptians figured out how to move tons of rock and build great monuments in the desert without electrical machinery or trucks to haul heavy objects with. Still, they probably couldn't figure out how to make a call on a modern cell phone. A bird can build a nest from twigs and keep itself safe from danger but can't read a book. Who is the most intelligent?

In scientific studies, horses and ravens have been shown to have an ability to count, but horses can't build houses, and humans can't fly as a raven can. Does that mean one is more intelligent than the other? No!

Our culture-fair exam does not base the results on your ability to count, read, or anything else. This means that the comparison group is the whole world, making this the most comprehensive comparison available.

Are the Results Reliable?

We make sure that the results are reliable to provide the best service for everyone who wants to know their true score. The questions were designed by an experienced medical doctor to provide a full and balanced measurement of an individual's intelligence.

We regularly review and update the questions to make sure that it remains accurate. Re-calibration is performed whenever necessary, so you can always be sure of a fair and accurate score.

Are you prepared to join Mensa?

Mensa is an international society for people with high intelligence. To join, you need to complete an extremely taxing intelligence quiz that only a small proportion of the population is capable of passing. There are several things you can do to prepare your body and mind to take the quiz – so do you think you have what it takes?

Frequently Asked Questions

Here are some of the most frequently asked questions regarding online intelligence tests.

No. Wrong answers to intelligence assessment questions don't reduce your overall points, so it's better to guess than leave the answer blank. Remain calm, take a deep breath, and try to take a different approach to finding the answer again. There is a logical answer for every question.

Our Quick IQ Test is free to take, and you'll receive instant results right after you've finished the quiz. The official Worldwide IQ Test is a paid test, and you can choose the type of results you want. Three options are available for your results:

1. Get an estimate of your IQ score range, e.g., Average/Normal (90-109) or Gifted (130-139), but not the exact score.
2. Get an estimate of your actual IQ and a more detailed report of your intelligence in PDF format.
3. An estimate of your IQ score along with the detailed report, plus a document containing all the correct answers with explanations. This is useful for understanding the logic behind each question.

No, not based on the results that you receive. Our online quiz is purely indicative and will not allow you to apply for membership of the Mensa association. However, it's a pretty good indicator of whether you should consider taking the official Mensa quiz.

Our quiz has been pre-calibrated before use, and from time to time, we re-calibrate our quiz again to better match with the Gaussian curve and the actual results. Are online tests accurate? Yes, but note that only an official Mensa quiz gives you the results that can lead to a Mensa membership. Our quiz can be used to indicate whether you should consider taking the official Mensa quiz, and can also be used for entertainment purposes and bragging rights – see if you can obtain the highest score among your friends.

The quiz ends when either of the following conditions is met: If the time limit of 24 minutes runs out, or all of the questions were answered. Try to stay within the given time limit when doing the quiz, because unanswered questions are interpreted as wrong answers.

Our questions are culture fair, and only contain graphical figures in black or grey (no letters or numbers) to avoid cultural bias in the intelligence testing. Intelligence testing is not about counting, spelling, or comprehension ability. Avoiding colors allows people with any color vision deficiency also to measure their intelligence quotient reliably.

Answers can be changed as long as all the questions are answered. You can navigate forward and backward in questions and change your answers.

After the quiz, we ask some questions so we can provide you with better reports in the future. This information is stored anonymously and has no bearing on your intelligence test result. You do not need to tell us your name or address. We will send the test report to the email address you provide, but you are free to use an anonymous (but functional) email address to maximize your privacy.