What does an IQ of 145 mean?
An IQ of 145 sits at the far right tail of the distribution — above 145, in the range popularly called "genius." Scoring higher than about 100% of people, 145 is extraordinarily uncommon, and it's worth being clear-eyed about what such a number does and doesn't say.
- Classification
- Highly Gifted / Genius
- Percentile
- >99th
- Scores higher than
- 100% of people
- Rarity
- about 1 in 741
- vs. average (100)
- +45 points
Key takeaways
- An IQ of 145 is in the Highly Gifted / Genius range (145+).
- It is about the >99th percentile — about 1 in 741.
- "Genius" is a popular label, not a clinical category.
Is an IQ of 145 good?
By the numbers, an IQ of 145 is exceptional — the kind of score only a tiny fraction of people reach. But "genius" is a loose popular term, not a scientific category, and at these extremes a short online test is least precise. Treat 145 as a sign of very strong reasoning, not a verdict on a person; achievement at this level still depends on what someone actually does.
How rare is an IQ of 145?
An IQ of 145 is extremely rare — about 1 in 741. Fewer than 0.1% of people reach it; in a random group of 1,000 you would expect at most about 1. Scores this far out also carry the widest measurement error.
What an IQ of 145 looks like in practice
At this extreme, score differences become hard to measure reliably and tell you little about any individual. Reasoning power is abundant; what shapes outcomes is how it's applied.
IQ 145 compared to nearby scores
No short test pins ability to a single point. An IQ of 145 is best read as the centre of a range — roughly 141 to 149 — 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 145 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 145 good?+
By the numbers an IQ of 145 is exceptional — well into the top fraction of a percent. Bear in mind that "genius" is a popular label rather than a clinical one, and online tests are least accurate at these extremes.
What percentile is an IQ of 145?+
An IQ of 145 is about the >99th percentile on the standard mean-100, SD-15 scale — meaning you score higher than roughly 100% of people.
How rare is an IQ of 145?+
A score of 145 is about 1 in 741, based on the normal distribution of IQ in the population.
Does an IQ of 145 qualify for Mensa?+
Yes — Mensa admits people who score at or above the 98th percentile, and an IQ of 145 clears that bar on the SD-15 scale. You still need to qualify on a Mensa-approved or supervised test, not an online estimate.
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