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Head-to-Head Comparison

Plato vs Voltaire

Plato (IQ 180) vs Voltaire (IQ 190). Side-by-side comparison of intellect, achievements, era and cultural impact.

Plato
0428–0348 · GR
180
Estimated IQ
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Voltaire
1694–1778 · FR
190
Estimated IQ
Read full biography →
Born04281694
Died03481778
CountryGRFR
Estimated IQ 180 190
Best known forApology • Crito • Euthyphro • Meno • Parmenides • Phaedo • Phaedrus • Republic • Symposium • TimaeusThe novel Candide

Who had the higher IQ?

By the most cited estimates, Voltaire tops this matchup with an estimated IQ of 190, a 10-point margin over Plato (180). IQ estimates for historical figures are reconstructions, not test results — they sit on top of biographical evidence, productivity, and the difficulty of the problems each person solved. Treat the number as a directional signal, not a verdict.

Achievements compared

Plato is best known for: Apology • Crito • Euthyphro • Meno • Parmenides • Phaedo • Phaedrus • Republic • Symposium • Timaeus Voltaire is best known for: The novel Candide

Different eras, different boards

The two were born roughly 1266 years apart (0428 vs 1694), which matters: scientific tools, available knowledge, and intellectual culture compound. Comparing minds across eras is comparing players on different boards.

The verdict

So who was greater? The honest answer: they're not strictly comparable. By raw IQ proxy, Voltaire edges out. By measurable, lasting influence in their respective field, both are anchors of the human record. If you have to pick one to bet civilization on, pick the one working on the problem you care about.

Frequently Asked

Who had the higher IQ, Plato or Voltaire?
Estimated IQs are 180 for Plato and 190 for Voltaire. Voltaire rates higher by 10 points. Historical IQ figures are reconstructions, not measured scores.
What is Plato most famous for?
Apology • Crito • Euthyphro • Meno • Parmenides • Phaedo • Phaedrus • Republic • Symposium • Timaeus
What is Voltaire most famous for?
The novel Candide
Did Plato and Voltaire ever meet?
They were contemporaries, though there is no documented direct meeting in our sources.

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