— IQ score explained
IQ of 68 — meaning, percentile & profile
An IQ of 68 is below the average range. IQ is one dimension of cognition and does not fully capture potential.
What does IQ 68 mean in practice?
→Pause. Find out YOUR IQ before you keep reading.An IQ of 68 means your raw performance on a standardised IQ test places you at the 2th percentile of the general adult population — lower than 98% of people. Many people at this level succeed across a wide variety of careers and life domains with the right conditions and strategies.
IQ 68 and the normal distribution
→Curious how YOU score? 20-min calibrated test.IQ is defined with a mean of 100 and a standard deviation of 15. An IQ of 68 is 2.13 standard deviations below the mean. The normal distribution tells us that:
- About 68% of people score between 85 and 115
- About 95% of people score between 70 and 130
- About 99.7% of people score between 55 and 145
- An IQ of 68 is higher than 2% of the adult population
IQ 68 and career outcomes
→The numbers above? Find out where YOU land.Career success depends on far more than IQ — motivation, perseverance, social skills, practical reasoning, and domain knowledge are all equally or more important than the IQ number for most real-world outcomes. Many people with IQs in this range lead highly successful and fulfilling careers.
Comparing IQ 68 to common benchmarks
→Knowing about IQ ≠ knowing yours. Take the test.| Score | Percentile | Classification |
|---|---|---|
| IQ 55 | 0th | Extremely low range |
| IQ 60 | 0th | Extremely low range |
| IQ 65 | 1th | Extremely low range |
| IQ 70 | 2th | Borderline range |
| IQ 75 | 5th | Borderline range |
How to accurately measure your IQ
→Stop reading. Start testing →A reliable IQ test uses Item Response Theory (IRT) scoring, which adapts the scoring based on item difficulty parameters rather than simply counting correct answers. Core Brain uses IRT 3PL (three-parameter logistic) scoring — the same statistical framework used by the WAIS and Stanford-Binet — and returns your score with a 95% confidence interval so you know the measurement uncertainty.
Related IQ scores
→Pause. Find out YOUR IQ before you keep reading.- IQ 55 — Extremely low range, 0th percentile
- IQ 60 — Extremely low range, 0th percentile
- IQ 65 — Extremely low range, 1th percentile
- IQ 70 — Borderline range, 2th percentile
- IQ 75 — Borderline range, 5th percentile