What was Einstein's IQ?

Albert Einstein's IQ is not known for certain because he never took any formal IQ test.

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However, both during his lifetime and after his death, his IQ has been estimated in various ways:

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In the 1930s: A psychologist estimated that Einstein's IQ was around 180.

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In the 1990s: Another psychologist estimated his IQ to be between 160–165, based on his childhood performance and achievements.

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In 2020: A study analyzed the size and structure of his brain, and estimated that his IQ may have been around 170.

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Einstein was certainly an extremely intelligent man, and his scientific contributions changed the world.

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