World IQ Map · country report
Average IQ in Brazil
1,176 people in Brazil took the same 20-question IQ test as everyone else on the map. Brazil ranks #38 of 53 countries.
99.7relative score
#38of 53
1,176people tested
-0.3vs world average (100)
Take the free test →20 questions · 5 minutes · free
Where Brazil sits
9095100 avg105110115120
#37
Thailand99.9
#38
Brazil99.7
#39Brazil99.7
Tunisia99.6
People who took the test in Portuguese scored lower than people from Brazil who took it in another language — 98.9 vs 105.4 (1,034 vs 142 people). That is most likely a translation or localization effect, not a claim about anyone's ability — see the method page for the full country-by-country breakdown.
100 is the average score of everyone who has taken the test since 2026-07-15, and 15 points is one standard deviation. People choose to take the test online, so this shows how Brazil's test-takers scored — it is not an official national measurement.
Where do you rank in Brazil?
Every test adds to Brazil's average. 20 questions, 5 minutes, free.
Take the free test →