Isaac NewtonPhysicist and mathematician
Cox rated him 170 for ages 17 to 26, 1 point above 169. Cox's childhood rating for him was 130.
What does an IQ of 169 mean?
An IQ of 169 means a score higher than about 99.99978% of people, roughly 1 in 473,383. The gifted-education researcher Miraca Gross used exactly this score as an example: "Children of IQ 169 appear in the population at a ratio of less than 1:100,000."
99.99978thpercentile
1 in 473,383score 169 or higher
Exceptionally giftedlevel of giftedness
169IQ scoreTop 0.00021%
How far out on the bell curve is 169?
Plot 169 on the bell curve and it lands 4.6 standard deviations, or 69 points, to the right of the average. The area beyond it, coloured orange below, holds only 0.00021% of people, too thin to see without zooming in.
169 is the last score in the 160s: one more point, and the curve reaches the 170s, where Hollingworth saw the strongest effects on children.
What makes 169 different
Gross's figure is cautious: on the standard bell curve, 169 is rarer than 1 in 400,000. Her point was practical. Teachers may go a whole career without meeting a child like this, so they rarely recognise one, and a child who is years ahead can easily be mistaken for one who is merely bright, or even for one who is badly behaved.
Worldwide, the curve predicts about 17,400 people at 169 or above, about 720 in the United States and fewer than 150 in the UK. On any normal test that whole group would be recorded as 160, the ceiling, which is a reminder of how little a ceiling score says about where someone really is.
How many people have an IQ of 169?
To meet one person scoring 169 or above, you would need, on average, a crowd of 473,383. Here is that crowd, built up step by step.
A crowd of 473,383 people
473,383
Every dot stands for a person. Only the orange one, one in the whole crowd, would be expected to reach 169.
People scoring 169 or higher, by population
| Worldwide (8.2 billion people) | about 17,400 |
| India | about 3,090 |
| United States | about 722 |
| United Kingdom | about 147 |
| Canada | about 88 |
| Australia | about 58 |
Population: World Bank, total population, 2025. Counts assume the same bell curve in every country and are rounded. Real tests can't sort people this finely, as the next sections explain.
Which high-IQ societies accept an IQ of 169?
Each society below admits a set top slice of the population and lists the score that matches it on the Wechsler adult scale. With a supervised result of 169, you would meet 5 of the 6 bars; the next, Mega Society, needs about 171.
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MensaTop 2% (98th percentile) on an approved, supervised test130met
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IntertelTop 1% (99th percentile); lists a Wechsler full-scale IQ of 135135met
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Triple Nine Society99.9th percentile; lists a WAIS full-scale IQ of 146146met
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International Society for Philosophical Enquiry99.9th percentile; lists a WAIS-III or WAIS-IV full-scale IQ of 146146met
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Prometheus Society1 in 30,000 (99.997th percentile), four standard deviations above average160met
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Mega SocietyOne in a million, beyond the range of standard tests171not met
Scores for Mensa, Intertel, Triple Nine and ISPE are the Wechsler figures those societies list or that match their percentile. Prometheus and Mega give only a rarity; the scores shown are the matching points on the standard scale. Prometheus says no test currently being given is approved for its entry. Online test results are not accepted by any of them.
Can an IQ test measure 169?
A score of 169 is 9 points past the ceiling of the main clinical tests, which stop at 160. The bars show the highest full-scale result each test can give; only the extended scales, used mainly with exceptionally able children, can report 169.
Behind every score is a norm sample: for the WAIS-IV, 2,200 adults. The bell curve predicts about 0.0046 of them at 169 or above, far less than one person, so no standard test has ever compared anyone with real 169 scorers. Extended norms are built from children who reach the ceiling of the standard test, and their scores rest on that projection.
Add the usual margin of error, about five points either way, and a result of 169 really means somewhere near 164 to 174. Very few people have ever been tested this high, so even extended scales are working near the limit of their evidence. No online test can pin down a score like this, ours included. What online tests can and can't tell you.
Sources: WAIS-IV range and norm sample from Canivez (2010), Mental Measurements Yearbook review; Stanford-Binet 5 and its Extended IQ from PRO-ED; WISC-V extended norms from Pearson Technical Report #6 (2019). Striped bars are extended scales, used only when a person hits the normal ceiling.
Is 169 the same on every IQ scale?
IQ tests don't all use the same yardstick. A scale with a larger standard deviation turns the same rank into a bigger number, especially this far above average.
169standard scale (SD 15), used by Wechsler tests and on this page
174older Stanford-Binet scale (SD 16)
210Cattell scale (SD 24), used by some older and online tests
Turn it around: if a test using the Cattell scale reports 169, the standard-scale equivalent is just 143. From an SD 16 test, 169 converts to about 165. Check the scale before comparing any high score. IQ standard deviations explained.
Historical figures rated at about 169
The figures below are not test scores. In 1926 the psychologist Catharine Cox rated 301 eminent people from records of their youth, giving each a childhood estimate and a second one for ages 17 to 26.
Victor HugoNovelist and poet
Cox rated him 170 for ages 17 to 26, 1 point above 169. Cox's childhood rating for him was 150.
John MiltonPoet
Cox rated him 170 for ages 17 to 26, 1 point above 169. Cox's childhood rating for him was 145.
Source: Cox, C. M. (1926), Genetic Studies of Genius, Vol. II: The Early Mental Traits of Three Hundred Geniuses, Stanford University Press. Cox stressed that thin records pull estimates down. Read more in where the historical genius IQ estimates came from.
Celebrity 169 IQ claims, checked
Search for a 169 IQ and the same famous names keep appearing. Here is what we found when we followed each figure back to where it started.
JP
170No evidence of a test
Judit Polgár
The strongest female chess player in history, but no record of any IQ test could be found behind the figure.
Sources for every claim are listed in our celebrity IQ list.
How rarity grows, point by point
Near the middle of the curve, one IQ point changes very little. Out here it changes a lot: each extra point makes a score about one and a third to one and a half times rarer. 169 is roughly twice as rare as 167, and the gap between 160 and 169 is a factor of about 15.
That steepness is why tiny measurement differences matter so much at the top, and why psychologists at this level report wide ranges. Gross's example shows the practical side: a child at 169 is not slightly more advanced than one at 160, but rare enough that schools need to plan for them individually.
Sources: Gross, M. U. M. (2000), "Exceptionally and Profoundly Gifted Students: An Underserved Population", Understanding Our Gifted; rarity worked out from the standard IQ scale (mean 100, SD 15).
What does an IQ of 169 mean?
A confirmed 169 means reasoning at a level found in about two people in a million of the same age, close to the top of the "exceptionally gifted" band. It would meet every high-IQ society's supervised bar except the Mega Society's one in a million.
Where 169 falls among the levels of giftedness
115–129Mildly gifted
130–144Moderately gifted
145–159Highly gifted
160–179Exceptionally gifted
180+Profoundly gifted
Levels and ranges from Gross, M. U. M. (2000), "Exceptionally and Profoundly Gifted Students: An Underserved Population", Understanding Our Gifted. They are a guide for education, not a ranking of people.
How far 169 is from other milestones
23 points above the Triple Nine and ISPE bar (146)a score of 169 is about 512 times rarer than 146
9 points above the ceiling of most professional tests (160)a score of 169 is about 15 times rarer than 160
2 points below the Mega Society's one-in-a-million level (171)reaching 171 is about 2 times rarer than 169
11 points below the start of the profoundly gifted band (180)reaching 180 is about 44 times rarer than 169
4.6 standard deviations above averageaverage is 100 and one standard deviation is 15 points
IQ 169 compared with nearby scores
| IQ | Percentile | Rarity | Level |
|---|---|---|---|
| 165 | 99.99926th | 1 in 136,176 | Exceptionally gifted |
| 167 | 99.9996th | 1 in 251,738 | Exceptionally gifted |
| 169 | 99.99978th | 1 in 473,383 | Exceptionally gifted |
| 171 | 99.99988th | 1 in 905,541 | Exceptionally gifted |
| 173 | 99.999943rd | 1 in 1,762,173 | Exceptionally gifted |
169 IQ: common questions
Is 169 a high IQ?
Yes. 169 is a very high IQ: about 1 person in 473,383 scores this high or higher, which puts it at the 99.99978th percentile. It is above the 130 that most definitions use for a high IQ, and at or above the 146 used by the Triple Nine Society for its 99.9th percentile entry.
Can you join Mensa with an IQ of 169?
Yes. Mensa accepts the top 2% on an approved, supervised test, which is about 130 on the standard scale. A supervised 169 would also meet the bar for Intertel, Triple Nine Society, International Society for Philosophical Enquiry and Prometheus Society. Online test results are not accepted.
What does 169 IQ mean?
It means a result 69 points, or 4.6 standard deviations, above the average for your age. On the levels used by gifted education researchers, 169 is exceptionally gifted (160–179).
Is 169 a genius IQ?
There is no official genius score. Lewis Terman's early Stanford-Binet labels put scores over 140 in a "near genius or genius" group, but modern tests dropped the word. 169 is very rare, yet achievements, not test scores, are what usually earn the word genius.
Can an online IQ test show a score of 169?
Some can show the number, but very few can measure it. Our own test reports up to 145, because a short online test doesn't have enough very hard questions, or enough high scorers in its data, to separate 169 from nearby scores. A supervised Wechsler or Stanford-Binet assessment is needed to confirm it.
How many people have an IQ of 169?
On the standard bell curve, about 1 person in 473,383 scores 169 or higher. Across the world's 8.2 billion people that would be about 17,400 people, although no standard test can measure them that precisely.
Related: what counts as a good IQ score, the highest IQ in the world, famous people's IQs and the full IQ scale and range chart.
Behind a single score of 169 sit several separate abilities. Read about processing speed, fluid vs crystallized intelligence, abstract reasoning, spatial reasoning and verbal reasoning, or try the free pattern recognition test.
Curious which celebrity IQs near 169 hold up? Read the full stories of Isaac Newton's IQ, Nikola Tesla's IQ, Stephen Hawking's IQ, Bill Gates' IQ, Elon Musk's IQ, Garry Kasparov's IQ, Terence Tao's IQ and Einstein's IQ.
Curious where you'd land?
Our free test takes about 25 minutes and gives an estimated IQ with its percentile. Results go up to 145, so a score like 169 can only be confirmed by a psychologist.
Take the free IQ testPortraits are pencil-style sketches by Assessivo, based on: Isaac Newton after Godfrey Kneller (1689), public domain. Victor Hugo from a photograph by Étienne Carjat (1876), public domain. John Milton after an anonymous portrait (about 1629), public domain.