IQ 197
An IQ of 197 is higher than almost everyone: about 1 in 20 billion.
Is your IQ above 197?
25 questions · about 12 minutes
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- 99.999th
- Percentile, at least
- 1 in 20 billion
- Score 197 or higher
- Profoundly Gifted
- Classification
That is 37 points beyond the ceiling most major tests publish, so the number itself is less certain than its rarity suggests.
An IQ of 197 falls in the profoundly gifted IQ range, which starts at 160. Find 197 on the IQ chart, or check how rare any score is with the IQ rarity calculator.
IQ 197: beyond what most tests can measure
A 197 is 37 points past the ceiling most major tests publish. The model rarity, about 1 in 20 billion, describes fewer than one person in the entire world, which is far beyond anything a test has been checked against.
No test has enough people in its norm sample to check its accuracy at 197. In a 2,200-person sample the bell curve expects effectively nobody at 197 or higher.
None of this means nobody is this able. It means a single number is not a reliable way to describe them.
How claims like "197 IQ" arise
A 197 almost never comes from a modern, supervised adult test. It usually comes from somewhere like this:
- Different scales. Some tests use a standard deviation of 24, so a 197 there is about 161 on the usual SD 15 scale.
- Historiometric estimates. Researchers such as Catharine Cox (1926) estimated IQs for famous people from biographies. Some of her adjusted estimates went above 200. They are educated guesses, not test results.
- Unnormed online quizzes. A test with no norm data can print any number. Very high outputs usually say more about the scoring than the person.
Famous estimates: Newton, da Vinci and the 160+ club
Nobody in history has a measured IQ of 197. The highest estimates on this site, for figures such as Isaac Newton and Leonardo da Vinci, come from reading their work and lives, not from tests. 42 profiles here are estimated at 160 or more.
As far as anyone knows, Albert Einstein never took an IQ test. The 160 figure repeated online is an estimate. See the Einstein profile for what it rests on.
How many people have an IQ of 197 or higher?
On a bell curve with a mean of 100 and a standard deviation of 15, about 0.000000005% of people score 197 or higher. Applied to whole populations:
| Where | Population | IQ 197+ |
|---|---|---|
| UK | 68 million | fewer than one (effectively zero expected) |
| US | 335 million | fewer than one (0.02 expected) |
| World | 8.1 billion | fewer than one (0.41 expected) |
Even across the whole world of 8.1 billion people, the bell curve predicts fewer than one person at 197 or higher.
The share scoring exactly 197, between 196.5 and 197.5, is about 1 in 45 billion. Across the world that would be fewer than one person.
Treat these as orders of magnitude, not census data. They apply the standard model to everyone, and individual tests have their own norms.
How rare is an IQ of 197?
An IQ of 197 or higher is 8.6 times rarer than 192 or higher, and 202 or higher is 9.6 times rarer again. At this point on the curve, each extra point makes a score about 56% rarer.
What your 197 could really be. At this height the margin of error is wide. Just 5 points either way, 192 or 202, changes the model rarity from 1 in 2.3 billion to 1 in 190 billion, which shows how fragile such numbers are.
Which scale was it on? Most modern tests use a standard deviation of 15, which is what this page assumes. If your 197 came from a test using an SD of 16, it is about 191 on the SD 15 scale. From an SD 24 scale, used by some Cattell-style reports, it is about 161.
Famous people with an estimated IQ near 197
Nobody famous has a verified IQ in most cases, and retrospective estimates are only made for a narrow group.
Our historical estimates start at 115, so nobody sits close to 197. That is not because famous people score higher. Estimates are only attempted for people with extraordinary records, which leaves ordinary scores unrepresented.
See all historical IQ estimates or all fictional character IQs.
197 compared with nearby scores
The scores one and five points either side of 197, plus the round numbers from 100 to 150, side by side. Tap any score for its full page.
| IQ | Classification | Percentile | Score higher |
|---|---|---|---|
| IQ 100 | Average | 50th | 50% |
| IQ 110 | High Average | 74.8th | 25% |
| IQ 120 | Superior | 90.9th | 9.1% |
| IQ 130 | Gifted | 97.7th | 2.3% |
| IQ 140 | Gifted | 99.62nd | 0.38% |
| IQ 150 | Genius | 99.96th | 0.043% |
| IQ 192 | Profoundly Gifted | >99.999th | 0.000000043% |
| IQ 196 | Profoundly Gifted | >99.999th | 0.0000000078% |
| IQ 197 | Profoundly Gifted | >99.999th | 0.000000005% |
| IQ 198 | Profoundly Gifted | >99.999th | 0.0000000032% |
Questions about an IQ of 197
Is 197 a good IQ?
What percentile is an IQ of 197?
Is 197 genius level?
What does an IQ of 197 mean?
How rare is an IQ of 197?
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Is your IQ above 197?
See where you land next to 197 with 25 visual reasoning questions.
25 questions · about 12 minutes
Percentiles and counts use a normal distribution with mean 100 and standard deviation 15. Real tests have their own norms, confidence intervals and ceilings, so treat every figure here as an approximation, not a diagnosis. Two tests often give different numbers for the same person: here is why.
By the LifeScore Editorial Team. Reviewed October 2026. Editorial policy