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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
98.6
95% CI: 96.8 to 100.4
Validated / All N
391 / 1,372
Validation rate: 28.5%
p10 / Median (p50) / p90
p10: 76.8
p50: 98.6
p90: 119.2
Avg time
45:51
Last updated
2026-03-06
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Current view N: 391

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
Adult (36-65)99.196 to 102.2136
Young Adult (19-35)98.696 to 101.2165
Youth (12-18)98.194.8 to 101.486
Senior (66-100)93.387.5 to 99.14

Average IQ in Brazil by gender

Gender table
GenderMean IQ95% CIN
Male100.998.7 to 103.1258
Female94.191.5 to 96.7133

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
Bachelor100.697.4 to 103.8120
Primary or Secondary97.293.4 to 10193
Post Secondary96.893.6 to 10083
Short-cycle tertiary97.693.6 to 101.659
Master degree99.493.3 to 105.528
Doctorate111.2105.4 to 1178

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
1Medicine and Health100.893.1 to 108.523
2Engineering and Technology100.796.9 to 104.555
3Business98.693.8 to 103.421
4No diploma97.594.8 to 100.2153
Data last updated: 2026-03-06 (latest test submission).
Page refreshed: 2026-03-07 11:02:09.455 UTC (site build time).

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