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

95% CI: 97.5 to 100.5

Validated / All N

505 / 1,698

Validation rate: 29.7%

p10 / Median (p50) / p90

p10: 77.5

p50: 99

p90: 118.5

Avg time

47:39

Last updated

2026-05-07

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Current view N: 505

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
Young Adult (19-35)	99.4	97.2 to 101.6	222
Youth (12-18)	99.1	96.2 to 102	112
Adult (36-65)	98.6	95.9 to 101.3	163
Senior (66-100)	93.8	89.7 to 97.9	8

Average IQ in Brazil by gender

Gender table

Gender	Mean IQ	95% CI	N
Male	101.3	99.4 to 103.2	338
Female	94.2	92 to 96.4	167

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	100.8	98 to 103.6	152
Primary or Secondary	98.3	94.8 to 101.8	120
Post Secondary	97.7	94.8 to 100.6	107
Short-cycle tertiary	96.8	94.1 to 99.5	83
Master degree	100.1	94.8 to 105.4	33
Doctorate	106.3	96.1 to 116.5	10

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	Computer Science	103.1	97 to 109.2	25
2	Medicine and Health	100.7	95.1 to 106.3	35
3	Engineering and Technology	100.1	96.2 to 104	67
4	Business	99.6	94.7 to 104.5	25
5	Law	99.1	93.3 to 104.9	23
6	No diploma	98.2	96 to 100.4	198

Data last updated: 2026-05-07 (latest test submission).

Page refreshed: 2026-05-09 03:45:31.139 UTC (site build time).