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Percentile
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Classification
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1 in N people
| Range | Classification | Percentile |
|---|---|---|
| 130+ | Very Superior | 98+ |
| 120–129 | Superior | 91–97 |
| 110–119 | High Average | 75–90 |
| 90–109 | Average | 25–74 |
| 80–89 | Low Average | 9–24 |
| 70–79 | Borderline | 2–8 |
| Below 70 | Extremely Low | Below 2 |
IQ Score Estimator
Converts an IQ score to a population percentile and classification. IQ tests are standardized so that the average score is 100 and one standard deviation is 15 points (Wechsler scale).
- An IQ of 100 is exactly average — 50% of people score higher, 50% lower
- Only a certified psychologist administering a standardized test provides a true IQ score
- Online IQ tests are not equivalent to clinical assessments
- IQ measures specific cognitive abilities, not general intelligence or potential