What Does an IQ of 90 Mean?

An IQ of 90 is in the “Average” range, where half of all people score. About 25.2% of people score lower and 74.8% score higher.

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Where an IQ of 90 sits on the bell curve (average 100, standard deviation 15)

What else is worth knowing about an IQ of 90?

90 is the lower boundary of the average range. Everyone from 90 to 109 counts as average, and the gap between 90 and 100 is small: retaking a test on a different day can easily move a score across it.

IQ 90 in numbers

Classification
Average
Scores lower than 90
25.2%
How rare
1 in 4 people score this low or lower
Distance from average
-0.67 standard deviations
Mensa level (top 2%)
No, Mensa usually needs about 130+

What the “Average” range means

Scores from 90 to 109 are average, the range where half of all people fall. An average IQ is no limit: effort, interests and experience matter far more for most goals.

How does IQ 90 compare?

IQScores lowerClassification
809.1%Low average
8515.9%Low average
9025.2%Average
9536.9%Average
10050%Average

Frequently asked questions

Is an IQ of 90 good?

An IQ of 90 is average, which is completely normal. Half of all people score between 90 and 109.

What percentile is an IQ of 90?

An IQ of 90 is higher than about 25.2% of the population, and about 74.8% of people score higher.

How rare is an IQ of 90?

Very common: it’s within the average range, where half of all people score.