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

98.6

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 group	Mean IQ	95% CI	N
Adult (36-65)	99.1	96 to 102.2	136
Young Adult (19-35)	98.6	96 to 101.2	165
Youth (12-18)	98.1	94.8 to 101.4	86
Senior (66-100)	93.3	87.5 to 99.1	4

Average IQ in Brazil by gender

Gender table

Gender	Mean IQ	95% CI	N
Male	100.9	98.7 to 103.1	258
Female	94.1	91.5 to 96.7	133

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	97.4 to 103.8	120
Primary or Secondary	97.2	93.4 to 101	93
Post Secondary	96.8	93.6 to 100	83
Short-cycle tertiary	97.6	93.6 to 101.6	59
Master degree	99.4	93.3 to 105.5	28
Doctorate	111.2	105.4 to 117	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	93.1 to 108.5	23
2	Engineering and Technology	100.7	96.9 to 104.5	55
3	Business	98.6	93.8 to 103.4	21
4	No diploma	97.5	94.8 to 100.2	153

Data last updated: 2026-03-06 (latest test submission).

Page refreshed: 2026-03-07 11:02:09.455 UTC (site build time).