Free IQ test

Intelligence is essentially your mental fitness. You can develop it within a relatively short time and even increase it a bit.
Intelligence quotient (IQ) is the scientific measure of your intelligence.
Why is knowing your IQ important? Well, if you know how intelligent you are, it will be easier for you and others to assess your mental capacity. Knowing your IQ can also bring increased self-confidence. It has been proven that intelligent people are more attractive to their peers. Isn’t that what we all want – for others to recognize our value?
You have come to the right place if:
- You want to boost your mental fitness and increase your general intelligence
- You want to know where your mental strengths and weaknesses lie
- You want to know and assess yourself better
- You are looking for information about intelligence
- You are looking for a pastime with long-term rewards

As you take this test, you will learn what questions you can expect to encounter on a classic intelligence test. Take your time. it is more important to understand the questions and tasks than to quickly find the answers. Have fun with the questions!

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What is intelligence?

Defining intelligence is not that simple, because of its different forms and how they are demonstrated in real life. But for our purposes, intelligence can be described as the skills you need to handle the daily requirements and challenges everyone faces. This might sound simple, but in fact, a lot is hidden behind this.
According to Webster’s Dictionary, "Intelligence is the capacity to perceive and comprehend meaning, information and news." But recently, a new, more complex and extensive concept of intelligence has been developed. The definition: “Intelligence is the ability to solve complex problems in changing circumstances.”

What is an IQ test?

When we say, "intelligence," we are not just talking about one thing, of course. Humans possess many different types of intelligence. Differing ideas of what intelligence actually is has led to the development of different scientific models, resulting in many different intelligence tests. These include ones for word, numerical and logical comprehension; spatial orientation; word fluency; cognitive performance; memory; and speed of perception.
A distinction is also often made between fluid intelligence (the innate intelligence a person is born with) and crystalline intelligence (the accumulation of knowledge, facts and skills one acquires throughout life).
Most high-quality intelligence tests combine and compare several or all these measurements to arrive at a well-rounded picture.

What is a "normal" IQ?

Scientifically put, IQ indicates the place within a Gaussian normal distribution (i.e., the bell curve of the density function) where the test-taker falls within his or her own age group. Worldwide, most people’s IQs are about 100. This is considered a "normal" IQ. The value of 100 has been chosen purely arbitrarily; one could just as well have chosen 50 or 311.
After choosing the average value of 100, you can look at subgroups, or people whose IQs fall above or below the average.
Gauss bell curve
Looking at many IQ tests, you can see that IQ values in the general population are distributed approximately - as shown above in the Gaussian bell curve.
The curve also shows that the (arbitrarily chosen) IQ score of 100 effectively divides people into two groups: those with IQ scores equal to or less than 100 and those with IQ scores greater than 100.
You can also see from the curve that 68.2% of people have an IQ between 85 and 115. Only 0.2% of people have extremely low intelligence (an IQ lower than 55), and only 0.2% have extremely high intelligence (an IQ higher than 145).

What IQ is normal for what age?

Many parents wonder, "Is my child intelligent?" The French psychologist Alfred Binet (1857-1911) addressed this question in his research.
First, Binet determined what could widely be considered "normal" mental abilities for students of different ages. He used this information to formulate the concept of intelligence age ("mental age"). This is the mental ability of a normal child of average ability at a given age.
Binet determined that a normal child’s IQ remains constant at 100, regardless of age. Just like adults, highly gifted children and adolescents have IQs above 130.
The formula Binet developed to calculate the IQ of a child/adolescent is:
. IQ = age of intelligence/age x 100

Here are two simple examples of this formula:
If a 10-year-old girl has the mental capacity of an 11-year-old girl, she has an IQ of 110 (11/10 x 100). If a 9-year-old boy has the mental capacity of an 11-year-old girl, his IQ is 122 (11/9 x 100).
Binet’s formula was based on his observation that intelligence increases along with adolescent age up to a certain point, peaking at age 26. After that, the IQ value slowly decreases (see graph):
Progression of IQ with increasing age
The above formula cannot be used to calculate adult intelligence. Also, the sex of the child or adolescent is irrelevant.

How good is an IQ of 120?

Gauss Glockenkurve
Looking at many IQ tests, you can see that IQ values in the general population are distributed approximately - as shown above in the Gaussian bell curve.

The curve also shows that 68.2% of adults have an IQ between 85 and 115. This means that only 15.9% of the population have an IQ higher than 115 – i.e., a “high IQ.” So, an IQ of 120 is considered above average. An IQ of 130 places a person in the highly gifted group.

What does an IQ of 70 mean?

Gauss Glockenkurve
Looking at many IQ tests, you can see that IQ values in the general population are distributed approximately - as shown above in the Gaussian bell curve.

The curve also shows that 68.2% of adults have IQs between 85 and 115, which means that only 15.9% of the population have IQs lower than 85. So, an IQ of 70 would be considered below average.

Are intelligence tests useful?

The answer to this question is, "It depends."
The crucial question to ask yourself here is what you want your IQ score to tell you. It will NOT answer the question, "How successful will I be in life?" There are countless examples of people with high IQs who do not have "successful"” lives. Many other factors, including emotional intelligence, strongly impact one’s life.
For example, on the job, a high IQ is useless if a person (among other factors) does not receive significant promotions, have a strong background knowledge of the subject matter of his or her work, or work reasonably hard.
But if you ask specific questions - like how high are my word, numerical and/or logical comprehension, spatial orientation, word fluency, cognitive performance, memory and/or speed of perception - an IQ test lets you compare yourself to people who have taken the same test. You can use it as a tool to show you which field or fields you should choose to increase your chances of long-term success.

Can online IQ tests be trusted?

The simple answer to this question is: "No"
. A serious (online) IQ test will be scientifically calibrated. The entire calculation basis will be publicly available and the test itself will have been peer-reviewed. The test will also be constantly kept up to date. Many intelligence tests on the internet claim to meet these criteria, but most rarely meet all - or even any - of them. This includes paid tests.
The second issue with most IQ tests deals with which path you choose to solve a problem. IQ tests that simply calculate an IQ value based on choosing correct answers can never determine pure or "true" IQ. Only an IQ test formulated with the input of a trained psychologist, who considers how you arrive at an answer and incorporates this information into the results, can honestly claim to meet the highest standards.
So, should you not take IQ tests on the internet? Yes, of course you should! Online IQ tests have value. They can help you understand how such tests are structured. They can point out which tasks cause you difficulty and which do not. They can help you recognize your strengths and weaknesses. But they do not have much value as far as measuring pure IQ goes.

Which IQ test is reputable?

A serious online IQ test is scientifically calibrated. The entire calculation basis is publicly available, and the test itself has been peer-reviewed and is constantly kept up to date.
Most online IQ tests do NOT meet these criteria. So, if you see (for one example) a test that claims it is "the shortest IQ test in the world," be skeptical. A quality IQ test must contain a minimum number of questions to cover all topics and IQ values.

How meaningful is an IQ test?

Even IQ tests that produce a pure IQ value, in my opinion, are not that valuable. Having a high IQ will not protect you from doing stupid things or ensure that you are more successful than others. However if you use an IQ test to determine your word, numerical and logical comprehension, spatial orientation, word fluency, memory and speed of perception, knowing your IQ becomes a lot more valuable.
For example, high intelligence in speed of perception shows you meet a basic qualification for the profession of air traffic controller. A low score in this area means you could not possibly be successful in this career.
So, the more precisely you can define what you want to find out from an IQ test, the more meaningful knowing your IQ will be.

What was Albert Einstein’s IQ?

Einstein’s exact IQ is unknown because Einstein never actually took an IQ test. However, in a study, Catharine M. Cox (Genetic Studies of Genius, 1926) estimated it, as well the IQs of other notable historical personalities. According to the study, the German-born physicist had an IQ of about 160.
Einstein’s IQ is far below the highest ever estimated. According to Cox’s study, the German literary figure Johann Wolfgang von Goethe is the most intelligent personality of all time, with an IQ of 210. Second is the German inventor, philosopher and mathematician Gottfried Wilhelm von Leibniz, with an IQ of 205. (Note that these are estimates and should be disclosed as such.)

Comments (42)


21 days ago
21 days ago
21 days ago
Was this even a IQ test
25 days ago
i have no idea whaht i am doing i guessed and i got %100
46 days ago
how to start it? sorry don't know how.
54 days ago
i thought i was gonna do well in this test. i got below 100 :c
66 days ago
I have read and i now know a bit about my IQ, thanks for the information
163 days ago
I hope what I want I find here for my tomorrow exam
163 days ago
Great test. i had fun
411 days ago
yes my moms so nice.
But my parents SPLlT UP (AS IN DIVORCE)
427 days ago
subscribe to Wewesdew if you love your parents plz
621 days ago
Hi everyone! If your against any type of abuse then please repost this message onto another quiz! Hopefully we can make everyone who do these quizzes aware that abuse and violence is never good!
Thank you for your time and I hope you all have a great day because you are wonderful and beautiful!
859 days ago
I hope what I want I find here for my tomorrow exam
935 days ago
(Intro:) (...) what it intelligence?
960 days ago
I hope everyone is having a great day so far!
987 days ago
Very good questions
990 days ago
i love this game
it can help us to test our iQ level
1016 days ago
I love this game so much
1044 days ago
cool i like this a lot
1059 days ago
I have got 9 correct but