IQ 197
Profoundly Gifted
Quick answer
Yes, and it is extremely rare. An IQ of 197 is higher than all but about 1 in 20 billion people.
That is 37 points beyond the ceiling most major tests publish, so the number itself is less certain than its rarity suggests.
Not sure your number is right? Take the free IQ test and compare.
Where 197 falls on the bell curve
The marker shows 197 on a scale stretched to 200. Everyone to its right, about 1 in 20 billion people, is too thin a sliver of the curve to draw.
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. 37 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 or higher |
|---|---|---|
| UK | about 68 million | fewer than one (effectively zero expected) |
| US | about 335 million | fewer than one (0.02 expected) |
| World | about 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
Estimates this high are reserved for a small group of scientists, artists and thinkers. These are the closest to 197. None of these are test scores. They are estimates from biographical evidence, and each profile explains its basis.
Fictional characters near 197
Fan analysis for fun, based on how each character solves problems on screen or on the page.
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 10097 lower | Average | 50th | 50% |
| IQ 11087 lower | High Average | 74.8th | 25% |
| IQ 12077 lower | Superior | 90.9th | 9.1% |
| IQ 13067 lower | Gifted | 97.7th | 2.3% |
| IQ 14057 lower | Gifted | 99.62nd | 0.38% |
| IQ 15047 lower | Genius | 99.96th | 0.043% |
| IQ 1925 lower | Profoundly Gifted | 99.999999956th | 0.000000043% |
| IQ 1961 lower | Profoundly Gifted | 99.9999999921st | 0.0000000078% |
| IQ 1981 higher | Profoundly Gifted | 99.9999999967th | 0.0000000032% |
Is 197 a good IQ?
Yes. 197 is far above average, about 1 in 20 billion people on the bell curve. At this height, though, tests lose precision, so a single result of 197 is best read as "well above 150" rather than an exact figure you can compare point for point.
What percentile is an IQ of 197?
The percentile for an IQ of 197 is about the 99.9999999949th, which is 6.47 standard deviations above the mean. In a class of 30, that means about 30 people scoring 197 or lower. If your test used a standard deviation of 16 or 24, the percentile would be different.
Is 197 genius level?
Informally, yes, since 197 is far beyond the 140 to 145 range where popular genius labels begin. But genius in the historical sense means achievement, like Newton's or da Vinci's, and their famous numbers are estimates. No test measures 197 precisely.
What does an IQ of 197 mean?
A 197 means your result on a timed reasoning test was 97 points above the average of 100, which this site labels Profoundly Gifted. Most tests cannot measure this high precisely. It reflects one test on one day, and it does not measure knowledge or character.
How rare is an IQ of 197?
About 1 in 20 billion people score 197 or higher. In the UK that is fewer than one person, in the US fewer than one and worldwide fewer than one. About 1 in 45 billion score exactly 197. These are bell curve estimates, not census counts.
What is the mental age for an IQ of 197?
Mental age only really applies to children. Old ratio tests divided mental age by real age, then multiplied by 100, so a 10-year-old with a ratio IQ of 197 would reason like a typical 19.7-year-old. Modern tests compare adults with people their own age instead.