What Does an IQ of 128 Mean?
An IQ of 128 is in the “Superior” range. It’s higher than about 96.9% of people, so roughly 1 in 32 people score 128 or higher. That’s 1.87 standard deviations above the average of 100.
IQ 128 in numbers
- Classification
- Superior
- Scores lower than 128
- 96.9%
- How rare
- 1 in 32 people score this high or higher
- Distance from average
- +1.87 standard deviations
- Mensa level (top 2%)
- Right at the cut-off of about 130
What the “Superior” range means
Scores from 120 to 129 are superior. About 7% of people are in this range. It usually means very strong reasoning: complex material comes easily, and so does learning new skills.
How does IQ 128 compare?
Frequently asked questions
Is an IQ of 128 good?
Yes. An IQ of 128 is above average: higher than about 96.9% of people.
What percentile is an IQ of 128?
An IQ of 128 is higher than about 96.9% of the population, and about 3.1% of people score higher.
How rare is an IQ of 128?
About 1 in 32 people score 128 or higher.