Analysing your IQ
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Check if your IQ score qualifies you for Mensa and other high-IQ societies. Compare your score across different test scales and see equivalent standardized test scores.
Mensa International is the largest and oldest high-IQ society in the world, founded in 1946 in Oxford, England. Membership requires a score at or above the 98th percentile on a standardized, supervised intelligence test.
Different IQ tests use different standard deviations, which affects the threshold score. The Wechsler scales (WAIS for adults, WISC for children) use SD 15, making the Mensa cutoff approximately 130. The Stanford-Binet 5 uses SD 16, placing the cutoff at about 132. The Cattell III B uses SD 24, where the cutoff is approximately 148.
Mensa accepts scores from many different tests. If you have a qualifying score from a prior IQ test, you can submit it for membership. Otherwise, Mensa offers its own proctored admission tests in most countries.
Mensa requires a score in the top 2% on a standardized intelligence test. On the Wechsler scale (SD 15), this is approximately 130. On the Stanford-Binet (SD 16), it is about 132. On the Cattell scale (SD 24), it is approximately 148.
No. Mensa requires a score from a proctored, standardized intelligence test administered by a qualified professional or through Mensa's own supervised testing sessions. Online IQ tests are not accepted for membership.
Both use a mean of 100 but differ in standard deviation. Wechsler uses SD 15, meaning a score of 130 is 2 SDs above the mean. Stanford-Binet uses SD 16, so the equivalent score is 132. The Cattell scale uses SD 24, where the equivalent is 148.
