Mensa IQ Requirement Checker
Mensa takes the top 2%. That is 130 on a Wechsler test, 132 on the older Stanford-Binet and 148 on the Cattell. Enter your score and test type to check.
Mensa qualifying scores by test
American Mensa accepts a score at or above these lines from a listed test. They all mark roughly the top 2%, but each test counts on its own scale.
| Test (scale) | Qualifying score |
|---|---|
| Wechsler scales (all versions), full-scale IQ (SD 15) | 130 |
| Stanford-Binet 5 (SD 15) | 130 |
| Stanford-Binet (before the SB5) (SD 16) | 132 |
| Cattell (SD 24) | 148 |
| Woodcock-Johnson Tests of Cognitive Abilities (SD 15) | 132 (editions I to III), 131 (edition IV) |
| Differential Ability Scales, 2nd edition (GCA) (SD 15) | 130 |
| Reynolds Intellectual Assessment Scales (SD 15) | 130 |
| Cognitive Abilities Test (CogAT) (SAS) | Composite 132 |
| Otis-Lennon School Ability Test (OLSAT) (SAI) | Total 132 |
| SAT (Score) | 1300 before 30 Sept 1974; 1250 from then to 31 Jan 1994 |
| ACT (Composite) | 29, taken before Sept 1989 |
| GRE (Verbal + quantitative) | 1250 before May 1994; 1875 from May 1994 to 30 Sept 2001 |
| Raven's Progressive Matrices | Not listed |
| ASVAB | Not accepted |
Wechsler, Stanford-Binet 5, Cattell and Woodcock-Johnson tests must be given by a psychologist. Raven's Progressive Matrices is not on the list, and the ASVAB is not accepted. The college tests have date limits: Mensa takes no SAT taken after 31 January 1994, no ACT after the 1989 change, and no GRE after 30 September 2001. Some national Mensas keep their own lists, so check yours. The Mensa practice test guide explains the routes in and the standard deviation guide shows why the numbers differ.
Other high-IQ societies
Cut-offs are computed from the normal curve for each society's published share. Each society lists its own accepted tests, so use these as a guide.
| Society | Admits | SD 15 | SD 16 | SD 24 |
|---|---|---|---|---|
| Intertel | Top 1% | 135 | 137 | 156 |
| Triple Nine Society | Top 0.1% | 146 | 149 | 174 |
| Prometheus Society | About 1 in 30,000 | 160 | 164 | 196 |
See how many people reach each line with how rare is my IQ, or look up any score on the IQ percentile chart. Our guide to high-IQ societies covers each one's history, accepted tests and why the highest cut-offs are hard to verify.
Why 130, 132 and 148 are the same
Mensa International was founded in Oxford in 1946 and admits people in the top 2% of the population on a standard test. The top 2% starts about 130.8 on SD 15, which Mensa publishes as 130.
A scale's standard deviation decides how far apart the numbers sit. The average is 100 on all of them. Two standard deviations above that is 130 on the Wechsler (15 points each), 132 on the older Stanford-Binet (16) and 148 on the Cattell (24). A Cattell 148 is not a higher level than a Wechsler 130. It is the same level on a wider ruler.
To compare a score between scales, match the percentile. The what IQ is the 99th percentile converter does this, and shows that 97.7% of people score below 130.
Frequently asked questions
What IQ do you need to join Mensa?
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Why are the Mensa scores 130, 132 and 148?
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