Famous people with high IQ — facts, myths, and controversies
Einstein 160, Hawking 160, Marilyn vos Savant 228 — what are the real IQ scores of famous people? What we actually know, and what's a myth repeated online.
Famous people with high IQ — facts, myths, and controversies
The "IQ of famous people" list is one of the most searched intelligence-related queries on Google. Albert Einstein 160, Stephen Hawking 160, Marilyn vos Savant 228, Terence Tao 230 — these numbers have been circulating online for decades. Time to verify how much truth is in them.
Short answer
Most IQ numbers for historical figures are myths. Einstein, Hawking, Da Vinci, Newton — none of them ever took any modern IQ test. The values attributed to them are post-mortem estimates based on their achievements — that is, reverse reasoning (since they achieved so much, they must have had that much IQ).
On the other hand, some public figures actually were tested — either they published their results themselves, or they were verified by well-known organizations. In these cases, we have concrete, verified data.
Let's separate facts from myths.
Facts — documented IQ scores
William James Sidis (~250-300, but...)
American child prodigy from the early 20th century. Entered Harvard at age 11. Some sources state his IQ was between 250 and 300 — which is statistically impossible on the classic scale (where above 200 there's 1 person in a billion).
These numbers come from tests used in the pre-Wechslerian era, using the formula mental age / biological age × 100. The 5-year-old Sidis was solving tasks for 15-year-olds, yielding "IQ 300" on that scale. Today no one would use this scale for comparison — because it has no statistical validation.
Realistically: Sidis had abilities several standard deviations above average. The specific number remains unknown — and unfortunately, his adult life didn't confirm the early "miracle numbers." He worked as an office clerk and died alone at age 46.
Marilyn vos Savant (228 — according to Guinness Book)
American columnist; in 1986, the Guinness Book of Records recorded her as the person with the highest IQ in the world — 228. She took a Stanford-Binet test, child version, at age 10.
The problem: the score 228 is 8 standard deviations above average, which statistically corresponds to 1 person in 1.2 billion. This is more an artifact of the scale used for children than a real measure of adult intelligence. The Guinness Book removed the "highest IQ" category in 1990 due to the unreliability of such measurements.
What is confirmed: vos Savant is a member of Mega Society (threshold: 1 in a million) and Prometheus Society (1 in 30,000), which require verification by professional tests. So realistically she has IQ of at least 170+ on the Wechsler scale.
Terence Tao (~230 — unverified)
Australian mathematician of Chinese origin, Fields Medalist (mathematical equivalent of the Nobel, awarded before age 40). At age 2 he learned to read. At 8 he was solving problems in mathematical analysis.
The cited IQ of 230 is based on childhood tests (scale based on mental age). Tao himself never confirmed any specific number. Realistically: he is one of the most outstanding mathematicians of the 21st century, so his IQ is "very high" — but the number 230 is a media extrapolation.
Christopher Hirata (225 — verified)
American astrophysicist, IMO bronze medal at 13, doctorate at 22. One of the more documented cases of actually very high IQ — tested in childhood at the Johns Hopkins Center for Talented Youth. The 225 score was given on a scale used for gifted youth.
Today he is professor of theoretical physics at Ohio State University.
Garry Kasparov (190 — estimate)
13th world chess champion, one of the greatest chess players of all time. His IQ was once tested by the German magazine Der Spiegel in 1987 — score 135.
The number 190 circulating online is a media myth. His chess achievements certainly required outstanding intelligence, but 135 is fully consistent with that achievement — you don't need 190 to become world chess champion.
This is a good example showing how media inflate IQ numbers for image effect.
Myths — unverified numbers circulating online
Albert Einstein (160) — UNCONFIRMED
Einstein never took any IQ test. The number 160 only appeared in the 1990s, invented by popular books on intelligence.
What we know about Einstein:
- He was a weak elementary school student in memory aspects — he couldn't stand the Prussian teaching style
- In high school he achieved very good results in math and physics, but average in languages
- He graduated from ETH Zurich with average grades and didn't find academic work immediately
- He wrote about himself that his success came from stubbornness and concentration, not "outstanding intellect"
A realistic estimate: Einstein probably had IQ in the range of 140-160, but this is pure speculation. His success is equally well explained by:
- Exceptional physical intuition
- Perseverance on problems (10 years of work on general relativity)
- Independent thinking (a personality trait, not IQ)
Isaac Newton (190) — COMPLETELY MADE UP
Newton lived in the 17th century. The first IQ test was created in 1905. There is no way his IQ could be "measured."
The number 190 comes from popular science books speculating about historical figures' IQs based on their achievements. It's simple "reverse reasoning": "since he discovered dynamics and gravity, he must have had at least 190" — which is illogical, because we don't know the correlation between IQ and scientific discoveries in the 17th century.
Leonardo da Vinci (180-220) — SAME THING
Da Vinci lived in the 15th/16th century. Any IQ numbers attributed to him are completely speculative. The most commonly cited 180-220 comes from popular books like "Geniuses of History."
Stephen Hawking (160) — UNCONFIRMED
Hawking himself refused to give any IQ number in interviews. In an interview for The New York Times (2004) he said: "I have no idea. People who brag about their IQ are losers."
This is a very healthy statement. Hawking was an outstanding theoretical physicist, but his talent was not mainly an "IQ number" — it was a specific gift of physical intuition + extraordinary perseverance in the face of ALS.
Mark Zuckerberg (152) — MYTH
Repeated in internet rankings. Zuckerberg never gave any IQ number and was never publicly tested.
Bill Gates (160-180) — UNCONFIRMED
Various numbers circulate. Gates in interviews refused to give any score. What we know:
- In high school he achieved above-average results, but not genius
- On the SAT (American university entrance exam) he scored 1590/1600 — a very high score, but this is not IQ
- He finished Harvard (well, actually didn't finish)
Realistically: Gates probably has IQ in the range of 140-160, but the specific 180 is a media fabrication.
What we actually know about people with very high IQ
Most are not famous
This may be non-obvious, but the statistics are clear: if 0.1% of the population has IQ 145+, then in the US alone there are about 330,000 such people. Of these 330 thousand, we know by name maybe 50.
Most people with very high IQ work in normal professions — programmers, doctors, scientists, lawyers, engineers, teachers. Very high IQ does not guarantee fame or financial success.
Many people with high IQ have social problems
Lewis Terman in the 1920s started a famous longitudinal study of gifted children ("Termites") — he selected about 1,500 children with IQ 135+ and tracked them throughout life.
Results:
- Most achieved professional success — above-average income, education
- But none of these individuals won a Nobel Prize or any prize at the genius level — although two children rejected from the study (with IQ ~130) later won Physics Nobels
- Higher rates of loneliness, depression, alcoholism than in the general population
- Many had relationship problems — especially in youth
This shows that very high IQ is not only a benefit — it's also a specific set of social challenges.
"Genius" achievements require more than IQ
Contemporary psychology is fairly unanimous: achievements at the level of historical geniuses (Newton, Einstein, Tesla) require a combination of several factors:
- High IQ (usually 140+)
- Perseverance and obsessiveness — Newton spent 20 years on "Principia Mathematica"
- Contextual luck — being in the right place at the right time
- Supportive environment — mentor, funding, time free from paid work
- Personality traits — independence, critical thinking, resistance to conformity
IQ height alone explains only part of success — and not the largest part.
List of verified Mensa and similar organization members
If you're interested in who actually has confirmed high IQ, here are some known people who are members of organizations requiring verification:
Mensa (130 threshold):
- Geena Davis — actress
- Asia Carrera — actress
- Quentin Tarantino — director (cited as a member)
- Steve Martin — comedian
- James Woods — actor
Triple Nine Society (146 threshold):
- Glen E. Wood — writer
Mega Society (176 threshold):
- Marilyn vos Savant
- Christopher Langan — autodidact
Practical lesson
High IQ doesn't define success. Marilyn vos Savant runs a column in a magazine. Christopher Langan, with IQ ~190, worked as a nightclub bouncer for a long time. William James Sidis died as a poor clerk.
And many outstanding people don't have genius IQ. Richard Feynman — Nobel laureate in physics, creator of quantum electrodynamics — had a school test IQ of 125, which irritated him: "IQ 125? That's like being a genius at idiocy."
Feynman was right. His scientific work went far beyond what IQ 125 would suggest — because IQ isn't everything.
Summary
- Most IQ numbers of historical figures are speculation — Einstein, Newton, Da Vinci never took tests
- Online "IQ rankings" are unreliable — they more often repeat myths than data
- High IQ does not guarantee fame — most people with IQ 145+ live in anonymity
- Genius achievements require more than IQ — perseverance, luck, environment, personality
If you want to check your real score (not a made-up number), take a psychometric test — preferably several times, in different formats.