Who has the most iq

William James Sidis has the World’s Highest IQ. Anywhere from 250 to 300 is his IQ score, almost twice the score of Albert Einstein. At the age of eleven, William famously entered Harvard University, becoming the youngest person to enter, also, claimed to be conversant in 25 languages.

Valuable information on the monumental achievements of human intelligence inspires many people around the globe. We are stemming from the groundbreaking discoveries made by real professionals. People such as Stephen Hawking, Albert Einstein, Isaac Newton, and various other intellectuals, which play a part in uncovering our comprehension of matter and our human experience. Comparing these contributions is occasionally measured by one's ability to show the boundless magnitude of our intelligence. Visible through achievements of the smartest people in the world, IQ tests, and show of undeniable genius!


Genius people like William Sidis enable us to believe in our more magnificent limitless nature. Another example of this is Professor Stephen Hawking, who inspires humanity to this day; to strive for a peek at the unknown. Professor Hawking’s IQ is much above average as well, scoring higher than 160 places him in the top, less than one percentile. Up there, with Albert Einstein and Mozart. Apart from high IQ, he was a person who notably popularized science with his ability to take massive amounts of complex information on things, such as black holes, and makes them accessible for people who are not scientists. This makes him one of the smartest people in the world who also happens to be a person with the highest IQ from recent years of life on Earth. Professor Stephen Hawking’s IQ is much up to par with his desire to make a complete theory of the universe accessible to everyone! A true genius of a person with much compassion for all humans.

Who has the most iq

Professor Stephen Hawking took complex physics and presented them with metaphorically understandable terms. These discoveries truly push humanity forward as a whole, helping answer questions about the concept of time, existence, and our current state. Likewise, Jonas von Essen showed the world once again, we are limitless. The Two-Time World Memory Champion attempted to show his phenomenal attributes to memory with his display of memorizing the first one hundred thousand digits of Pi (π) in March of 2020. His usage of a mnemonic device called Mind Palace Technique shows how one's ability to increase intelligence can be done by learning other methods, which will assist the process of encoding and recalling information.

Top 10 highest IQ ever

Name IQ SCORE
William James Sidis 250-300
Christopher Hirata 225
Johann Goethe 210-225
Terence Tao 210
Leonardo Da Vinci 180-220
Isaac Newton 190-220
Marie Curie 180-220
Nikola Tesla 130-310
Nicolaus Copernicus 160-200
Professor Hawking 160


The person with the highest IQ may have a greater chance of displaying great brain health, which attributes to the increase of intelligence. Healthy brain and information retention go hand in hand with one's ability to utilize intelligence to reach desired conclusions of hypotheses. The web of ideas is supported by intelligence, and intelligence is supported by the ability to process information towards best desirable outcomes, ‘solutions overcoming barriers.’ The solutions, which solve the basic needs for the existence of humans on Earth.

An increase in intelligence must be seen as a whole, which consists of universally similar attributes within human mental abilities. The way mental skills, such as problem solving, logic, and reasoning, come together to manifest the perceived intelligence of a human being. Our job is not to focus on the IQ score but rather to understand our strengths and things we can work on to help us live a healthy, stable life. A life with a great personal fiance is found where intelligence is, at the very least, utilized - put to use. We are all intelligent, just not all of us choose to attempt discovering that intelligence within. Building the web processes of action which intelligence arises from requires a steady, healthy pace—entailing a stress-free, health-centered environment.

Who has the most iq


The likes of William Sidis, Stephen Hawking, and Jonas von Essen show us that we ourselves set the limits to our limitless intelligence, nobody else. Each contribution unravels a piece of the whole. For the rest of the world to rise with these discoveries as well. When others are seen breaking, previously thought barriers, striving to a better intelligence is evermore promising. Aligning with our nature and experiencing intelligence in everyday life will set us up for success in making life better. Therefore, having the highest IQ score is only part of the possibilities to exhibit intelligence - many various contributions can be made! Bottom line is that understanding becomes a great place to start in that betterment of intelligence.

Who has the most iq

The highest IQ possible in the world is theoretically 200, although some people have been known to have an IQ of above 200. Let’s discuss how that’s possible below.

Everyone with an IQ score higher than 110 is lucky enough to have an above average intelligence. But there are select individuals with the fortune of much higher IQ scores. Only a minority of people are able to score higher than 110 on an IQ test, which makes it easy to identify the true geniuses in our society (according to this test).

Some of these exceedingly smart people are better known to the general public than others, I’m sure you’ve heard of Albert Einstein and his incredibly high IQ but have you heard of Christopher Hirata? These lesser-known individuals deserve recognition and that’s what we hope to do here.

The true sign of intelligence is not knowledge but imagination. – Albert Einstein

Who Are The People Holding The World Record For High IQ?

The person with the highest IQ ever recorded is Ainan Celeste Cawley with an IQ score of 263. The list continues as follows with the highest possible IQ:

  • Ainan Celeste Cawley (IQ score of 263)
  • William James Sidis (IQ score of 250-300)
  • Terence Tao (IQ score between 225 and 230)
  • Marilyn Vos Savant (IQ score of 228)
  • Christopher Hirata (IQ score of 225)
  • Kim Ung-Yong (IQ score of 210)
  • Edith Stern (IQ score over 200)
  • Christopher Michael Langan (IQ score between 190 and 210)
  • Garry Kasparov (IQ score of 194)
  • Philip Emeagwali (IQ score of 190)
  • Judit Polgar (IQ score of 170)
  • Albert Einstein (IQ score between 160 and 190)
  • Stephen Hawking (IQ score of 160)

What Is IQ?    

Back in 1916, the American psychologist Lewis Madison Terman (1877-1956) developed the intelligence quotient or IQ. At the time, Lewis was employed by the United States Army. The first mass IQ test was taken by US soldiers during World War I.

The original scale of IQ scores, as devised by Terman, proposes several different classifications.

Who has the most iq

Alfred Binet invented the first intelligence test. Credit: public domain / Wikimedia

According to Terman’s scale, anyone with a score under 70 is classified as “definite feeble-minded”; anyone with a score between 70 and 79, would have “borderline deficiency”; anyone with a score between 80-89 would be afflicted with dullness. Most people have a score between 90 and 109, which means that they are classed as having a normal or average intelligence.

Intelligence quotient (IQ)Interesting Facts
Founded byPsychologist William Stern
Original nameIntelligence quotient
Developed1912
Median score (theoretical)100
Two-thirds of the populationIQ between 85 and 115
2.5% of the populationAbove 130
2.5% of the populationBelow 75

Once you get an IQ score of 110 you begin to take note. A score between 110 and 119 would indicate a superior intelligence; a score between 120 and 140 would mean a very superior intelligence; a score over 140 would indicate genius or near genius.

What is the highest theoretical IQ Possible?

While some of the scores below lie well above an IQ of 200, there is a debate about whether an IQ above 200 is theoretically possible (practicable). When the IQ test was developed, the mean of the normal distribution was arbitrarily placed at 100. This means the normal distribution of intelligence of the human species should center at 100. If you’re below 100, you’re less intelligent than average and above 100 the opposite (note that is just for this test). The IQ score moves 15 points in either direction with each standard deviation.

Who has the most iq

However, with a standard deviation of 15, the chance that one would have an IQ of 200 makes it nearly impossible. Given a rough estimate of the world population of 7 billion, one can back-calculate what IQ is expected for the “smartest person on the planet” given the normal distribution.

This would equate to an IQ of about 194.6 as the highest IQ out of the approximately 7 billion people on this planet. Hence, we recommend taking some of the numbers below with a grain of salt. It is also hard to calculate IQ scores with high precision and accuracy in the infinitesimally small tail ends of the IQ distribution.

People With The Highest IQ Ever

Albert Einstein (IQ Score between 160 and 190)

Who has the most iq

Credit: Public Domain / Wikimedia

Albert Einstein is one of the most famous scientists of all time, however, he didn’t have the highest IQ ever recorded. This goes to show that while having a high IQ opens doors, at a certain point Einstein brought a lot more to the table.

Einstein is known for developing the theory of relativity and the famous equation E=mc2 and is the recipient of the 1921 Nobel Prize in Physics. The IQ score of 160 to 190 is a range because Einstein never was officially tested. This number is based on experts evaluating Einstein as a person and developing a reasonable prediction as to what his IQ score would have been if he had been tested. Here’s a great paper on estimating IQ from historical figures.

Stephen Hawking (IQ Score of 160)

Who has the most iq

Credit: Public Domain / NASA

Stephen Hawking is someone you’ve undoubtedly heard about and know something about. He was a once in a generation scientist who perfectly balanced his scientific endeavors along with connecting science to the general public.

Hawking was famous for his study of black holes and his hit book A Brief History of Time. In addition, held the position of director of research at the Centre for Theoretical Cosmology at the University of Cambridge. Hawking battled ALS from 1963 when he was diagnosed until his death in March of 2018. While battling a physically declining condition, he grew in popularity through his live and became somewhat of a pop culture icon. He appeared in The Simpsons, Star Trek, and The Big Bang Theory.

William James Sidis (IQ score between 250-300)

Who has the most iq

Credit: Public Domain / Wikimedia

This American was born into a family of New York City intellectuals. William James Sidis (1898 – 1944) was gifted from an extremely young age. When he was only 5 years old he was already able to type and had learned several languages including Greek, Latin, French, Hebrew, Russian, German, and, of course, English.

After he was initially turned down when he was 6, William was finally admitted to Harvard University at the age of 11. He didn’t have an easy time in college, later moving to Texas where he became a teacher. He attempted a political career but died young (at age 46), penniless.

Terence Tao (IQ score between 225 and 230)

Who has the most iq

Credit Gert-Martin Greuel via Wikimedia Commons is licensed under CC-BY-SA 2.0

This Australian-American mathematician was born in 1975 in the Australian city of Adelaide. His parents emigrated from Hong Kong to Australia.

Tao showed an amazing aptitude for math when he was a child. By the age of 20, he’d already earned a Ph.D.

He was awarded several prestigious math awards, including the Fields Medal in 2006. He currently lives in Los Angeles, California where he works at UCLA.

Marilyn Vos Savant (IQ score of 228)

This American entered the Guinness Book of World Records as the person with the highest IQ back in 1986. To this day there are only two other people with a recorded higher IQ than her.

“Although spoken English doesn’t obey the rules of written language, a person who doesn’t know the rules thoroughly is at a great disadvantage.” – Marilyn Vos Savant.

Marilyn Vos Savant was born in Missouri in 1946. She is most famous for her column “Ask Marilyn” where she provides advice and counsel to all sorts of life dilemmas.

“Just as the human body can be strengthened and toned through regular exercise, so the mind can be stretched and sharpened through a programme of Brain Building.”  – Brain Building In Just 2 Weeks by Marilyn vos Savant

Christopher Hirata (IQ score of 225) 

Who has the most iq

Credit: Ohio State University

Like Terence Tao, Christopher Hirata (1982) was considered a child prodigy. He is an American astronomy professor at Ohio State University.

Among his many achievements are getting a gold medal at the International Physics Olympiad in 1996 at the age of 13, working for NASA at the age of 16, and getting a Ph.D. from Princeton when he was 22.

Kim Ung-Yong (IQ score of 210)

This Korean professor and researcher currently working at Chungbuk National University learned to speak when he was just 6 months old. At that young age, he could only speak his native Korean but by the age of 6, he learned how to read several languages including Korean, English, German, and Japanese.

Kim Ung-Yong began to write at the age of four and earned a Ph.D. when he was just 16 years old.

Edith Stern (IQ score of more than 200)

Edith Stern, born in 1952, is an engineer and IBM inventor with a Ph.D. in Math.

When Edith Stern was only 11 months old she was able to communicate using cards, then at the age of one, she began to be able to identify some of the letters in the Latin alphabet. By the age of 2, she knew the entire alphabet.

She entered college when she was 12 and became a teacher at age 16.

Christopher Michael Langan (IQ score between 190 and 210)

Who has the most iq

Image byTeaFoam via Flickr is licensed under CC-BY 2.0

Californian resident Christopher Michael Langan (1952) is best known for his “Cognitive-Theoretic Model of the Universe” theory.

He was able to speak when he was only 6 months old and was a self-taught reader at age 3.

Garry Kasparov (IQ score of 194) 

Who has the most iq

Credit: Gage Skidmore / Flickr CC BY-SA 2.0

Garry Kasparov was born in Baku, the capital of Azerbaijan in 1963.

“I started playing chess when I was five years old. I learned the moves from my mother, then worked with my father – and later trainers. My style became very technical. I sacrificed a lot of things. I was always hunting for the king, for the mate. I’d forget about my other pieces”. – Garry Kasparov.

He is famous for being the best chess player of all time, winning more chess games than anyone else. Garry became the youngest World Chess Champion in 1985 when he was 22 years old. In a highly publicized match, Garry lost to the IBM supercomputer nicknamed Deep Blue.

Philip Emeagwali (IQ score of 190)

This Nigerian born computer scientist, mathematician, engineer, and geologist has several postgraduate degrees from different universities.

At age 13 his schooling was suspended due to the Nigerian Civil War as he was enrolled in the Biafran army. He earned his high school diploma through self-study afterward.

Judit Polgar (IQ score of 170)

Who has the most iq

Credit: GFHund / Wikimedia

This Hungarian chess player was born in 1976. Judit Polgar became a chess grandmaster when she was only 15.

Judit was a child prodigy, taking part in chess tournaments at 6 years old. She is now considered to be one of the strongest female chess players of all time.

Is It Possible To Increase Your IQ Score?

There are definite, science-backed methods to improve your IQ score. Keep in mind this won’t bring you from below average to genius. Most likely, this will help you increase your score by a few points on average. While that may not seem like a lot, the steps below will help keep you sharp and focused, even at an older age.

Who has the most iq

Studies show it is possible to increase your IQ score (Credit: Scientific American)

  • Be healthy, for your brain to function at peak level you should exercise, eat well, and get enough sleep.
  • Try to change your daily routine, if you always take a shower before brushing your teeth try to swap them around, this will keep your brain active and involved.
  • Meditating, regardless of what it looks like for you, helps you relax, increase blood flow to the brain and let your brain focus more intently on solving difficult tasks.
  • There are a variety of supplements, including caffeine, omega 3 fatty acids, creatine, and ginkgo that can help with cognition and learning.
  • Practice challenging your mind by solving word puzzles, reading, learning a new hobby or skill, etc. The brain is not a static organ, it can grow more powerful with exercise, the same as weightlifting.
  • New experiences, traveling, and doing new daily tasks helps to expand your mind and allow it to be constantly challenged in new environments.

Keep in mind when working toward a higher IQ that intelligence comes in many different forms. “Thurstone contended that intelligence comprises seven distinct but interrelated factors: verbal comprehension, verbal fluency, number (arithmetic computation and problem solving), memory, perceptual speed, inductive reasoning, and spatial visualization.” – Intelligence: A Brief History

These are the highest possible IQ scores and the people who hold the world record. Have you taken an IQ test, if so, leave your IQ in the comments below? If anyone has a score of 109, then kudos!