What is Leonardo da Vinci's IQ?
Leonardo da Vinci is credited with an IQ somewhere between 180 and 220 — a range so wide it advertises its own unreliability. He died in 1519, four centuries before IQ testing.

A quick, honest note. This number circulates online with no traceable origin. We publish it because you came to read it, and label it what it is: lore.
Where does the 180–220 number come from?
The forty-point spread is the tell. A range that wide is not a measurement with error bars, it is a collection of unrelated guesses averaged into a headline.
Leonardo left notebooks covering anatomy, hydraulics, optics, geology and flight, alongside a small number of finished paintings and a long record of unfinished commissions. Reading that as a reasoning score requires deciding in advance that breadth equals IQ.
It is a good illustration of what these lists are really ranking: cultural stature, converted into a number that sounds measured.
How rare would a 220 IQ be?
If the 220 end of that range were literally true, it would be extraordinarily rare — rarer than1 in 1,501,199,875,790,165 people. That alone is a good reason to treat any confident-sounding celebrity IQ number with a raised eyebrow.
Too rare to draw — a grid with one highlighted dot in 1,501,199,875,790,165 would be a solid wall of gray.
What a score like this would mean
A 220 would sit in the very superior · gifted range — about one person in 1,501,199,875,790,165. Fill a large concert hall and you would expect nobody in the room to clear it.
Stop reading estimates about strangers. Sixteen questions and about ten minutes gets you a number that is actually yours.
Frequently asked questions
What was Leonardo da Vinci's IQ?
Unknown. He died in 1519, four centuries before IQ testing. The quoted 180 to 220 range is retrospective guesswork.

