Napoleon Bonaparte IQ

Napoleon never took an IQ test. The 145 usually quoted is Catharine Cox's 1926 corrected estimate, built from biographies of his youth: she rated him about 135 as a child and 140 as a young man. On modern norms that is closer to 125, so LifeScore uses 125 to 155.

Very, in practical ways. He was commissioned as an artillery officer at 16 after mathematics-heavy training, chaired many of the sessions that drafted the Civil Code, and was famous for remembering units, officers and terrain in detail. Cox found military fame tracked IQ less than other fields.

About 1.69 metres, or roughly 5 feet 7 inches, average or slightly above for a Frenchman of his time. The myth that he was tiny comes from his height being recorded as 5 pieds 2 pouces in old French units, British cartoons, and his nickname le petit caporal.

Neither can be tested. Cox rated Napoleon at 145 but Alexander lived long before her study. Both were brilliant commanders; Alexander never lost a major battle, while Napoleon also rebuilt French law, education and administration, which gives him the broader documented record of civil achievement.

The 145 traces to Catharine Cox's 1926 study of 301 eminent people. She rated Napoleon about 135 for childhood and 140 for ages 17 to 26, then corrected for gaps in the record. Secondary tables give that corrected figure as 145.

Cox also found that military leaders were the one group where her IQ ratings did not track eminence. Great generals were not reliably the brightest children.

Adjusted by about 22 points for the Flynn effect, 145 falls to roughly 123. LifeScore keeps 145 as the headline because it is the documented figure, with a working range of 125 to 155.

Napoleon combined fast calculation of time and distance with an obsessive memory for detail. He planned campaigns around speed, dividing his army to march and concentrating it to fight. Off the battlefield he applied the same system-building to law, schools and the state.

What supports it

• His strongest school subjects were mathematics and history, while his overall record was uneven.
• He qualified for artillery, a branch whose training depended heavily on mathematics.
• His documented reading, memory for operational detail and ability to coordinate military and civil systems support exceptional applied reasoning.
• Cox rated him about 135 for childhood and 140 for young adulthood; secondary tables give his corrected estimate as 145.

What it cannot prove

• School rank and achievement are not interchangeable with IQ.
• Cox herself found that military eminence was the one field where childhood IQ did not track eminence.
• A modern score cannot be reconstructed precisely from eighteenth-century records.

Napoleon Bonaparte's IQ is represented here by a retrospective estimate of 145, not a verified test result. Napoleon Bonaparte is best known for exceptional strategic planning. The useful question is what the surviving evidence shows, not whether a precise modern score can be recovered.

Extreme Conscientiousness and High Neuroticism (managed). A master of memory and detail.

The dominant archetype here is The Ruler. This archetype shapes decision patterns: what feels natural, what creates friction, and what blind spots tend to emerge.

Estimated IQ is 145. This is a rough estimate based on documented accomplishments and contemporary accounts, not a literal measurement.

Napoleon was elected to the science class of the French Institute in 1797. A geometry result, Napoleon's theorem, carries his name, though his authorship is doubtful.

Elon Musk shows a contemporary version of Napoleon's working style. The era is different, but patterns such as risk tolerance and social strategy look similar. This is not an IQ comparison.

Read Elon Musk's profile

Napoleon Bonaparte's estimate of 145 falls in the genius level IQ range. See what an IQ of 145 means, place it on the IQ chart or check how rare it is with the IQ rarity calculator.