What Does an IQ of 66 Mean?
An IQ of 66 is in the “Extremely low” range. About 1.2% of people score lower and 98.8% score higher. It’s 2.27 standard deviations below the average of 100.
IQ 66 in numbers
- Classification
- Extremely low
- Scores lower than 66
- 1.2%
- How rare
- 1 in 85 people score this low or lower
- Distance from average
- -2.27 standard deviations
- Mensa level (top 2%)
- No, Mensa usually needs about 130+
What the “Extremely low” range means
Scores below 70 are very rare, about 2% of people. A low score on an online test often has a simple cause: tiredness, distraction or misreading the questions. Only a qualified professional can assess intellectual ability properly.
How does IQ 66 compare?
Frequently asked questions
Is an IQ of 66 good?
An IQ of 66 is below average, but online tests are only estimates. Tiredness or distraction can lower a score by several points.
What percentile is an IQ of 66?
An IQ of 66 is higher than about 1.2% of the population, and about 98.8% of people score higher.
How rare is an IQ of 66?
About 1 in 85 people score 66 or lower.