The next IQ tests are on October 21st, 2023 (official tests for grown-ups & teenagers) at 10 am and on November 11th, 2023 (children up to 10 years)

How do I qualify for a Mensa membership?

Membership in Mensa is open to persons who have attained a score within the upper two percent of the general population on an approved intelligence test that has been properly administered and supervised. There is no other qualification or disqualification for membership eligibility.

The term "IQ score" is widely used but poorly defined. There are a large number of IQ tests with different scales. The result on one IQ test of 132 can be the same as a score 148 on another IQ test. Some intelligence tests don't use IQ scores at all. Mensa has set a percentile as cutoff to avoid this confusion. Candidates for membership in Mensa must achieve a score at or above the 98th percentile on a standard test of intelligence (a score that is greater than or equal to that achieved by 98 percent of the general population taking the test).

Generally, there are two ways to prove that you qualify for Mensa: either take the Mensa IQ test, or submit a qualifying score from another IQ test (supervised and approved by Mensa). There are a large number of intelligence tests that are "approved". However, Mensa does not recognize any online IQ tests! If you have already passed an IQ test, then you may directly contact Mensa to hear whether this test is recognized. If so, you may send a copy of the transcript of your test results to Mensa Luxembourg by email ( to become a member.

If you have no previous qualifying test, you may check our online example test. This test is free, an you can find it here: online IQ test. Caution: this test does not directly allow to apply for a Mensa Membership, it is merely intended to serve as an example to give you an idea how the questions in a actual Mensa test might be structured, and to help you decide whether it would be worthwhile to sit for the actual supervised test.

What is the official IQ Test of Mensa Luxembourg?

If you have never taken an IQ Test yet, the easiest way is to participate in the official test organized by Mensa Luxembourg. The official IQ test takes place twice a year in a supervised room in Luxembourg. You fill it out with a pen on paper, and it is supervised and graded by a psychologist. It is a recognized and approved IQ test whose purpose it is to detect intellectually gifted people. For this reason, we must charge 40€ for the test. The free online example test is not enough to apply for a Mensa membership.


  • The official test is organized twice a year by Mensa Luxembourg. Date and address are displayed on this site (yellow box at the top of every page of this site).
  • Should you fail to reach the needed score to become a member of Mensa Luxembourg, then you are entitled to sit for the test a second time free of charge
  • Mensa tests are not the same in different countries. Here in Luxembourg the Mensa IQ tests is a test which is "culture fair". This means that in this test no language skills are needed.
  • Be careful: There is a wide range of IQ Tests on the Internet that provide a false image of IQ Tests. Our Test does not contain any questions implying culture (what is the third King? …), computation (how many possibilities and when …) or language (what is the synonym of …)

What kind of questions are asked at our IQ test?

The official IQ test at Mensa Luxembourg is a recognized multi-step test under the supervision of a psychologist. The primary intention of the test is to detect people who are intellectually advanced compared to other people of their age. A result which is equal or better than that of 98% of the population entitles you to become member of Mensa (Mensa Luxembourg and Mensa international).

At the Mensa IQ Test in Luxembourg there are no questions about general education, nor culture, nor scholar or language skills. Rather, it is about mathematical and logical understanding, information processing speed, analysis and synthesis ability, attention to detail, etc.

It is a recognized test held under the supervision of a psychologist, where the aim is to discover above average and gifted people.

A result which is better than or equal to 98% of the population entitles you to become a member of MENSA (,

How to find out when the next official Mensa IQ test will take place?

The date of the next test is in the yellow box located at the top of every page on our website.

How do I register for the Mensa IQ test (ages 10 and up), and how is it organized?

The registration for the test for youngsters and adults is on site, and starts half hour before the start of the actual test.

  • ADDRESS: 1, Rue St Joseph L-1838 Luxembourg
  • RECEPTION / CASH DESK: starting at 9:30 (plan enough time to find a parking spot!)
  • START OF THE TEST: 10:00 (after 10:00 we unfortunately can no longer admin anybody to the test)
  • DURATION: 1 hour
  • PRICE: The test costs 40€, payable (cash) on site. If you do not reach the necessary score for a Mensa membership at the first attempt, then you may repeat the test at a later date for free.
  • REGISTRATION: the registration form is available on site. However, in order to win time, you may also download it from here and fill it out in advance

The results will be sent 4-6 week after the test via postal mail.

We are sorry to say that we are unable to give out any results via email or phone.