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

98.5

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

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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 group	Mean IQ	95% CI	N
Young Adult (19-35)	98.8	96.1 to 101.5	153
Adult (36-65)	98.5	95.3 to 101.7	122
Youth (12-18)	98.1	94.1 to 102.1	70
Senior (66-100)	91.9	87 to 96.8	2

Average IQ in Brazil by gender

Gender table

Gender	Mean IQ	95% CI	N
Male	100.6	98.3 to 102.9	235
Female	94	91.2 to 96.8	112

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	100.1	96.7 to 103.5	108
Post Secondary	96.8	93.1 to 100.5	77
Primary or Secondary	97.1	92.7 to 101.5	77
Short-cycle tertiary	96.8	92.7 to 100.9	50
Master degree	99.1	92.7 to 105.5	26
Doctorate	112.2	107.3 to 117.1	9

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	Engineering and Technology	100.5	96.2 to 104.8	51
2	Medicine and Health	100.5	92.5 to 108.5	22
3	No diploma	97.2	94.1 to 100.3	128

Data last updated: 2026-02-08 (latest test submission).

Page refreshed: 2026-02-08 20:37:31.324 UTC (site build time).