Evaluation & Results

IQ Test Grades

We use classification labels such as 'exceptional' or 'average' to define the different categories of IQ scores.


What is the average IQ?

In most modern IQ tests, the average IQ score is set at 100 with a standard deviation (SD) of 15, so IQ scores follow a normal statistical distribution.

This means that about 95% of the world's population has scores within two standard deviations (SD) of the mean (average IQ score).

It means that 95% of the population is within a range of 70-130, with 98% of people having scores below 131. Alternatively, two-thirds (67%) of the population has IQ scores within one SD of the mean, i.e. within the range 85-115.


How does our IQ test work?

Our certified IQ test uses 25 questions to test the most important areas of intelligence. These include visual perception, abstract thinking, pattern recognition, analytical thinking and spatial orientation.

With over 1.5 million IQ tests completed, we have an enormous reference set that allows us to accurately determine IQ scores despite a small number of questions.


Who has the highest IQ?

Ainan Celeste Cawley - IQ value: 263


Ainan Celeste Cawley is a young prodigy from Singapore with the highest IQ value of 263, which is the highest possible value a person can achieve under standard conditions.


He was born on November 23, 1999 and is a citizen of Singapore. Within seven years, he gave his first public lecture at the age of only six and passed high school chemistry with ease.

A year later, he was studying at Singapore Polytechnic, and it seemed like nothing could stop this amazing kid.

By the age of 9, Cawley could then memorize all the bars of the periodic table and recite pi to 518 decimal places.

As a result, Ainan was invited by several prestigious universities to give lectures on his discoveries.


IQ levels


IQ value of less than 20
It is a severe mental disability (idiocy). One cannot be educated or trained. Often one depends on the help of other people, one cannot take care of oneself, often one lives in his own world and cannot perceive the environment. This group makes up 0.2% of the population.


IQ value of 21 and 50

It is a moderate mental retardation (feeble-mindedness). People with such values cannot be educated, but they are able to take care of themselves and live quite independently. Such people make up about 2% of the population.


IQ value from 51 to 70

It is a lower degree of mental disability. People with such values cope with problems in elementary school, but in special schools they have almost no problems. They make up one tenth of the population.


IQ value from 71 to 80

It is a lower degree of intellectual disability. People with such values cope with elementary school with problems, but in special schools they have almost no problems. They make up one tenth of the population.


IQ value from 81 to 90
People with IQ values between 81 and 90 master basic school and can be handy. They have slightly below average intelligence. They make up about 10% of the population.


IQ value between 91 and 100
IQ scores between 90 and 100 are considered just below average. People with such scores complete university studies with few problems. However, if they are consistent and hardworking, they can find an exceptional job. This group makes up 25% of the population.


IQ score between 101 and 110
IQ scores measured between 101 and 110 are considered high average. People with such scores complete university studies only with problems. However, if they are consistent and hardworking, they can find an extraordinary job. This group makes up 25% of the population.


IQ value between 111 and 120

This is above average intelligence. University studies are no problem for such people, and they finish school without difficulty. If they are diligent, they can find an exceptional job. There are about 12% of people with these IQ values in the population.


IQ value between 121 and 130
IQ values between 121 and 130 are considered to be very above average. People with such scores easily study at universities and can excel as executives or in creative jobs. This group makes up about 6% of the population.


IQ score above 140

People with an IQ score above 140 have excellent qualifications for creative activities and determine the direction of knowledge for others. They are geniuses of their time, thinking up new theories and new devices. There are about 0.2% of people in society with these values, e.g. Bill Gates or Stephen Hawking.

Intelligence quotient by country

With an average IQ of 98.6, the United States are in the upper midfield - the list is topped by the inhabitants of Singapore with 107.10 points, thus achieving the highest intelligence quotient worldwide. A complete list of IQ values (intelligence quotients) of all countries can be found here:


Albania | 82
Algeria | 84
Argentina | 93
Armenia | 93
Australia | 99
Austria | 99
Azerbaijan | 85
Bangladesh | 81
Belgium | 99
Bolivia | 77
Brazil | 87
Bulgaria | 93
Burundi | 72
Cameroon | 64
Canada | 100
Chad | 66
Chile | 90
China | 106
Colombia | 83
Costa Rica | 86
Croatia | 98
Czech Republic | 99
Denmark | 97
Dominican Republic | 82
Egypt | 83
El Salvador | 78
Estonia | 100
Finland | 101
France | 98
Georgia | 87
Germany | 99
Ghana | 70
Greece | 93
Guatemala | 79
Honduras | 81
Hungary | 98
Iceland | 99
India | 82
Indonesia | 86
Iran | 86
Ireland | 95
Israel | 95
Italy | 96
Japan | 104
Jordan | 87
Kazakhstan | 85
Korea, Republic of | 105
Kyrgyz Republic | 75
Laos | 89
Latvia | 96
Lesotho | 67
Lithuania | 94
Luxembourg | 95
Macedonia | 91
Madagascar | 82
Malawi | 60
Malaysia | 92
Mali | 70
Mauritania | 74
Mexico | 88
Moldova | 92
Mongolia | 100
Mozambique | 70
Namibia | 70
Nepal | 78
netherlands | 100
new zealand | 99
Nicaragua | 84
Nigeria | 71
Norway | 97
Pakistan | 84
Panama | 80
Paraguay | 84
Peru | 84
Philippines | 86
Poland | 96
Portugal | 94
Romania | 91
Russian Federation | 97
Rwanda | 76
Senegal | 71
Serbia | 90
Sierra Leone | 64
Slovak Republic | 98
Slovenia | 98
South Africa | 72
Spain | 97
Sri Lanka | 79
Sweden | 99
Switzerland | 100
Tajikistan | 80
Tanzania | 73
Thailand | 90
Tunisia | 85
Turkey | 89
Uganda | 72
Ukraine | 94
United Kingdom | 99
United States | 98
Uruguay | 91
Vietnam | 94
Zambia | 74
Zimbabwe | 72

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