Who Has 400 IQ?
When it comes to human intelligence, most people have an IQ between 85 and 115. But throughout history, a few extraordinary individuals have scored far beyond that range, achieving incredible intellectual feats.
One question often asked online is, “Who has a 400 IQ?” While a true IQ score of 400 has never been officially recorded, some legendary minds have been rumored or estimated to have exceptional IQ levels—well above genius range.
In this article, we’ll explore the top 10 highest IQ people in history, their achievements, and the myths surrounding extreme IQ claims.
📌 Understanding IQ Scores
IQ (Intelligence Quotient) is a measure of a person’s reasoning ability compared to the average population.
- Average IQ: 100
- Above Average: 115–129
- Gifted: 130–144
- Genius: 145+
Anything over 200 is extremely rare and often based on estimates rather than official tests. A “400 IQ” is widely considered a myth, as current IQ testing systems cannot reliably measure scores that high.
🧠 Top 10 Highest IQ People in History
1. William James Sidis – Estimated IQ: 250–300
Often considered one of the most intelligent people ever, Sidis was a child prodigy who could read newspapers at 18 months old and entered Harvard at age 11. He spoke over 40 languages and wrote several books on mathematics, history, and philosophy.
2. Terence Tao – IQ: 225–230
Nicknamed the “Mozart of Math,” Terence Tao is an Australian-American mathematician who made groundbreaking contributions in harmonic analysis, partial differential equations, and number theory. He began university-level math courses at just 9 years old.
3. Marilyn vos Savant – IQ: 228
Listed in the Guinness Book of World Records for the highest recorded IQ, vos Savant became famous for solving incredibly complex logic problems in her magazine column.
4. Christopher Hirata – IQ: 225
At age 13, Hirata was working with NASA on projects related to Mars exploration. He later became a professor of physics at Ohio State University.
5. Kim Ung-Yong – IQ: 210
A former child prodigy from South Korea, Kim was able to read multiple languages by age 3 and worked for NASA before the age of 10.
6. Garry Kasparov – IQ: 190–200
World chess champion for over 20 years, Kasparov is widely considered one of the greatest chess players in history. His strategic thinking and memory skills are legendary.
7. Stephen Hawking – IQ: 160
Though his score is lower than some on this list, Hawking’s contributions to cosmology, black holes, and quantum gravity made him one of the most brilliant scientific minds of our time.
8. Leonardo da Vinci – Estimated IQ: 180–190
The Renaissance genius excelled in art, science, anatomy, and engineering, leaving a legacy of inventions and masterpieces like the Mona Lisa.
9. Albert Einstein – Estimated IQ: 160–190
Creator of the theory of relativity, Einstein’s work reshaped modern physics. His problem-solving skills and creativity remain unmatched.
10. Nikola Tesla – Estimated IQ: 160–310
The inventor and electrical engineer behind alternating current (AC) technology, Tesla was decades ahead of his time in imagining future innovations.
❓ Who Really Has a 400 IQ?
No official scientific record supports a 400 IQ score. It’s likely an exaggeration or misunderstanding of IQ measurement scales. The highest reliably recorded IQs are in the 200–230 range.
Final Thoughts
While IQ is just one measure of intelligence, history has shown us that creativity, persistence, and passion often matter just as much as raw brainpower. Whether or not a 400 IQ exists, the individuals on this list prove the incredible potential of the human mind.
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