What does an IQ of 120 mean?
An IQ of 120 falls in the Superior band (120–129) — roughly the top tenth of the population. Scoring higher than about 91% of people, 120 reflects strong abstract reasoning that's noticeably above average without yet reaching the "gifted" threshold of 130.
- Classification
- Superior
- Percentile
- 91st
- Scores higher than
- 91% of people
- Rarity
- about 1 in 11
- vs. average (100)
- +20 points
Key takeaways
- An IQ of 120 is classified as Superior (120–129).
- It is about the 91st percentile — higher than 91% of people.
- The Superior band is roughly the top 10% of scores.
Is an IQ of 120 good?
Yes — an IQ of 120 is a strong result, placing you in roughly the top 10%. Reasoning at this level tends to make complex, abstract material easier to absorb. It's still one dimension of ability, though: what you do with that reasoning depends on focus, curiosity, and the skills you build.
How rare is an IQ of 120?
An IQ of 120 is uncommon: only about 9% of people score this high — in a random group of 1,000, roughly 91 would reach 120 or above.
What an IQ of 120 looks like in practice
At this level people often gravitate to analytically demanding work and pick up new technical material quickly. The advantage is meaningful, but it sits alongside — not above — traits like persistence and judgement.
IQ 120 compared to nearby scores
No short test pins ability to a single point. An IQ of 120 is best read as the centre of a range — roughly 116 to 124 — rather than an exact value, and it is not meaningfully different from scores a few points either side. When you compare two people, overlapping ranges matter more than the point scores.
Where 120 sits on the IQ scale
| IQ Range | Classification | % of People | What it means |
|---|---|---|---|
| ≤69 | Extremely Low | ~2.2% | Well below average. On clinical tests this range may warrant professional assessment. |
| 70–79 | Borderline | ~6.7% | Below average reasoning on this scale. |
| 80–89 | Low Average | ~16.1% | Slightly below the population average. |
| 90–109 | Average | ~50% | The middle of the distribution — where most people score. |
| 110–119 | High Average | ~16.1% | Above average reasoning ability. |
| 120–129 | Superior | ~6.7% | Notably above average — roughly the top 10%. |
| 130–144 | Gifted | ~2.1% | The conventional 'gifted' threshold (130) and above — top ~2%. Mensa qualifies here. |
| 145+ | Highly Gifted / Genius | ~0.1% | Exceptionally rare — the far right tail of the distribution. |
Frequently asked questions
Is an IQ of 120 good?+
Yes. An IQ of 120 is well above average, in roughly the top 10% of the population, and reflects strong abstract reasoning.
What percentile is an IQ of 120?+
An IQ of 120 is about the 91st percentile on the standard mean-100, SD-15 scale — meaning you score higher than roughly 91% of people.
How rare is an IQ of 120?+
A score of 120 is about 1 in 11, based on the normal distribution of IQ in the population.
Does an IQ of 120 qualify for Mensa?+
Not quite. Mensa requires the 98th percentile (about IQ 131 on this scale), and 120 falls just below it. A supervised test is the only way to qualify — online scores are estimates.
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