IQ score guide
Percentile
16%
Rarity
1 in 6
this low or lower
Classification
Low average
On the standard scale (mean 100, SD 15), a score of 85 sits 1.0 standard deviation below the mean — the 16th percentile, meaning it matches or beats about 16% of the adult population. Test manuals file it under "low average" (about 16% of people).
A single below-average score, especially from an online test, is weak evidence about a person. Language mismatch, fatigue, anxiety and unfamiliarity with puzzle formats all depress scores. Patterns across multiple honest measurements — and real-world function — are what mean something, and interpreting those is professional work.
It is below the population average, and it is also just one number from one sitting. Sleep, stress, effort, language and test quality all move scores this far routinely. If a score like this arrived alongside real-world difficulties, the useful response is a professional assessment, which measures far more than a website can.
About 1 person in 6 scores 85 or lower; put the other way, roughly 84% of people score above it. It sits 1.0 standard deviation below the mean.
Almost certainly, by a little. Even excellent tests carry ±3–5 points of measurement error, online tests more, and the same person swings several points between good and bad days. Read 85 as "probably between 78 and 92" from a good test — wider from a casual one. Any result quoted without an error range is overclaiming.
Nearby scores: IQ 80 · IQ 84 · IQ 86 · IQ 90 · or see the whole scale.
Was 85 your score somewhere? Cross-check it: our test is free, untimed, generates fresh questions every attempt, and reports an honest range instead of a single flattering number.
Take the free IQ test