What an IQ of 90 means

IQ TestWhat Does Your IQ Score Mean? › IQ 90
25.2 %
Smarter than 25.2% of people
90 · 25.2%55100145
Average
Average range, where about half of people score
🏛️ Mensa cutoff 130 — 40 points away
🌍 In the United States (national average ≈ 98, an estimate from test samples), an IQ of 90 is in the top 70.3%.

What an IQ of 90 means. Smarter than 25.2% of people. Classification: Average — Average range, where about half of people score.

IQClassificationPercentile
100Average50.0%
120Superior90.9%
130Very Superior / Gifted97.7%

❓ FAQ

Is an IQ of 90 a good score?
An IQ of 90 falls in the "Average" range and is higher than 25.2% of the population.
What percentile is an IQ of 90?
An IQ of 90 sits at the 25.2th percentile — the top 74.8% of the population.
Can you join Mensa with an IQ of 90?
Mensa requires roughly IQ 130 (top 2% on SD15); 90 is 40 points below the cutoff. Practice and a supervised test may close the gap.
How many people have an IQ of 90 or higher?
Roughly 6,054,810,975 people worldwide — about 74.8% of 8.1 billion.
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📅 Last updated: 2026-06-18 · ✔ Reviewed by the All-Lifes editorial team · About · Methodology
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