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Average IQ in Brazil

Based on the UniversalIQTest.com online dataset (Validated / All results)

These are averages from self-selected participants in the UniversalIQTest.com online test (not population IQ).

Use N and 95% CI when comparing; avoid causal conclusions.

See Methodology & limits.

Mean IQ
98.5
95% CI: 96.6 to 100.4
Validated / All N
347 / 1,295
Validation rate: 26.8%
p10 / Median (p50) / p90
p10: 76.5
p50: 98.7
p90: 118.1
Avg time
42:46
Last updated
2026-02-08
View
Current view N: 347

IQ distribution in Brazil (p10-p90)

Brazil
85100115
IQ score

IQ breakdowns in Brazil by age, gender, education, and study area

Average IQ in Brazil by age group

Small sample: at least one group has N<50 (estimates are unstable).
Age group table
Age groupMean IQ95% CIN
Young Adult (19-35)98.896.1 to 101.5153
Adult (36-65)98.595.3 to 101.7122
Youth (12-18)98.194.1 to 102.170
Senior (66-100)91.987 to 96.82

Average IQ in Brazil by gender

Gender table
GenderMean IQ95% CIN
Male100.698.3 to 102.9235
Female9491.2 to 96.8112

Average IQ in Brazil by education level

Small sample: at least one group has N<50 (estimates are unstable).
Education table (largest samples)
Education levelMean IQ95% CIN
Bachelor100.196.7 to 103.5108
Post Secondary96.893.1 to 100.577
Primary or Secondary97.192.7 to 101.577
Short-cycle tertiary96.892.7 to 100.950
Master degree99.192.7 to 105.526
Doctorate112.2107.3 to 117.19

Average IQ in Brazil by study area

Note: groups with N<20 are hidden by default.
Top study areas in Brazil (N >= 20)
RankStudy areaMean IQ95% CIN
1Engineering and Technology100.596.2 to 104.851
2Medicine and Health100.592.5 to 108.522
3No diploma97.294.1 to 100.3128
Data last updated: 2026-02-08 (latest test submission).
Page refreshed: 2026-02-08 20:37:31.324 UTC (site build time).

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