IQ Tests

If you are looking for intelligence tests to discover how smart you are, Worldwide IQ Test has several options for you. Our Quick Test is free and contains just 5 questions, giving you a fast answer based on your score in the quiz.

IQ Test

The Worldwide IQ Test is our full quiz and comes in two variations. Both feature 35 questions, and with the FREE version you’ll get to see your IQ range. The paid version, for the low price of $4.99 (USD), will include an estimate of your exact IQ score along with a PDF report. It’s worth it just to show your friends that you’ve passed an intelligence quiz!

Take a short break to test out our online intelligence quizzes, each of them testing your intelligence and perception ability. After completing the online quiz you'll get the instant results based on the number of correct answers in the quiz.

Test preparation

The Quick Test is free and contains 5 questions with no time limit. You can try it out before moving on to the Worldwide IQ Test, which contains 35 questions and is time-limited to 24 minutes.

Please note that although the Worldwide IQ Test is our official intelligence quiz, it is not provided by Mensa and does not give you eligibility to apply for Mensa membership based on the quiz results. However, it is a strong indicator as to your ability to pass the official Mensa quiz.

Quick IQ Test

Check this out first


Quick IQ Test

Which figure logically belongs in the empty box of the grid?
  • The free test includes:
  • 5 Questions
  • No Time Limit
  • Instant results (the number of correct answers)
Read more about the Quick IQ Test →

Start The Quick IQ Test

Are you prepared to join Mensa?

Mensa is an international society for people with a high IQ. To join, you need to complete an extremely taxing intelligence quiz that only a small proportion of the population are 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 test 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.

Currently, all our tests are free to take, and you'll receive instant results right after you've finished the quiz. However, there is a paid option which provides more information in relation to your results. The free version will give an estimate of your IQ score range (eg normal IQ, high IQ, etc), but not the exact IQ score. The paid version will provide an estimate of your exact IQ score, along with a more detailed report of your intelligence in PDF format.

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 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 IQ score among your friends.

The quiz ends when either of the following conditions is met: If the test time 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 Worldwide IQ Test is culture fair, and it contains only 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 to also measure their IQ 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 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.