What IQ do you need to join Mensa?

Mensa admits people who score at or above the 98th percentile on an approved, supervised intelligence test — that is, in roughly the top 2% of the population. Because different tests use different scales, the requirement is defined by percentile, not by one fixed IQ number.

How do you join Mensa?

There are two main routes: take a supervised admission test arranged by your national Mensa, or submit qualifying evidence of a prior score from an approved test administered by a qualified professional. If you meet the threshold, you can then apply for membership.

Does this site's test qualify me for Mensa?

No. Mensa only accepts scores from approved tests taken under supervised, proctored conditions. An online, unsupervised test like this one cannot be used for entry, though it may help you decide whether to pursue official testing.

Is Mensa testing worth it?

That depends on what you want from it — Mensa offers a social and intellectual community. The test has a fee and requires a supervised session, so many people first try an informal online test to gauge whether they're likely to be in range.

How to Join Mensa: Requirements and Accepted Tests

To join Mensa, you need to score at or above the 98th percentile — roughly the top 2% of people — on an approved, supervised intelligence test. You can either sit Mensa's own admission test or submit a qualifying score from another accepted test taken under proper conditions. Importantly, an unsupervised online test (including this one) does not count for entry. Here's how the process really works.

What Mensa actually requires

Mensa is an international high-IQ society, and its single membership criterion is a score in the top 2% of the general population on a standardised intelligence test it recognises. Because tests use different scales, this threshold is defined by percentile rather than a universal number — the equivalent IQ figure differs depending on the test's standard deviation. (For why the same percentile can map to different numbers, see what a good IQ score means.)

Two routes to qualifying

Take Mensa's supervised admission test. National Mensa organisations run proctored testing sessions. You register, attend in person (or via an officially supervised format where offered), and if you reach the threshold you qualify.
Submit prior qualifying evidence. Mensa accepts scores from a published list of approved tests, provided they were administered and supervised by a qualified professional — for example, certain tests given by a licensed psychologist. You submit the documentation for review.

Exact accepted tests, fees and procedures vary by country, so the authoritative source is always your national Mensa via the official Mensa website.

The application process, step by step

Check your country's Mensa. Requirements and accepted evidence differ between national groups.
Choose a route. Book a supervised test, or gather documentation of a qualifying prior score.
Sit the test or submit evidence. Supervised testing usually carries a modest fee.
Apply for membership. If you meet the threshold, you complete the membership application and pay any dues.

Why this site's test does not qualify

To be completely clear: the test on ProIQTest.com is not an accepted Mensa entry test. Mensa requires supervised, proctored testing under controlled conditions, and our test is online and unsupervised, offered for educational and entertainment purposes. It is also not affiliated with Mensa in any way. We explain the general limits of unsupervised testing in how accurate online IQ tests are.

How an online test can still help

While it can't admit you to Mensa, an informal test can help you decide whether official testing is worth your time and money. If you consistently score near the top of the range on a sound, Raven's-based reasoning test, you may be a good candidate for supervised testing; if not, you've saved yourself the fee. Either way, it's a low-stakes way to gauge where you stand before committing to the real thing.