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.

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Mean IQ

98.8

95% CI: 97.1 to 100.5

Validated / All N

412 / 1,419

Validation rate: 29.0%

p10 / Median (p50) / p90

p10: 77.2

p50: 98.9

p90: 119

Avg time

46:30

Last updated

2026-03-23

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Current view N: 412

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 group	Mean IQ	95% CI	N
Adult (36-65)	99.2	96.2 to 102.2	140
Young Adult (19-35)	98.7	96.2 to 101.2	176
Youth (12-18)	98.5	95.3 to 101.7	91
Senior (66-100)	93.3	89.1 to 97.5	5

Average IQ in Brazil by gender

Gender table

Gender	Mean IQ	95% CI	N
Male	101	98.9 to 103.1	270
Female	94.4	91.9 to 96.9	142

Average IQ in Brazil by education level

Small sample: at least one group has N<50 (estimates are unstable).

Education table (largest samples)

Education level	Mean IQ	95% CI	N
Bachelor	100.6	97.5 to 103.7	125
Primary or Secondary	98	94.1 to 101.9	101
Post Secondary	96.5	93.4 to 99.6	87
Short-cycle tertiary	97.7	94.1 to 101.3	62
Master degree	99.5	93.7 to 105.3	29
Doctorate	111.2	105.3 to 117.1	8

Average IQ in Brazil by study area

Hide small samples (N < 20)

Note: groups with N<20 are hidden by default.

Top study areas in Brazil (N >= 20)

Rank	Study area	Mean IQ	95% CI	N
1	Medicine and Health	100.8	93.4 to 108.2	24
2	Engineering and Technology	100.7	96.9 to 104.5	55
3	Business	99.3	94.7 to 103.9	24
4	No diploma	97.8	95.1 to 100.5	164

Data last updated: 2026-03-23 (latest test submission).

Page refreshed: 2026-03-24 07:51:45.126 UTC (site build time).