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
98.1
95% CI: 96.8 to 99.4
Validated / All N
674 / 2,237
Validation rate: 30.1%
p10 / Median (p50) / p90
p10: 76.3
p50: 97.5
p90: 117.7
Avg time
49:25
Last updated
2026-06-18
View
Current view N: 674
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) | 98.6 | 96.8 to 100.4 | 299 |
| Youth (12-18) | 98.5 | 96 to 101 | 150 |
| Adult (36-65) | 97.6 | 95.4 to 99.8 | 214 |
| Senior (66-100) | 90.3 | 82.9 to 97.7 | 11 |
Average IQ in Brazil by gender
Gender table
| Gender | Mean IQ | 95% CI | N |
|---|---|---|---|
| Male | 100.1 | 98.5 to 101.7 | 449 |
| Female | 94 | 92 to 96 | 225 |
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 | 100.2 | 97.9 to 102.5 | 192 |
| Primary or Secondary | 96.8 | 94 to 99.6 | 161 |
| Post Secondary | 96.3 | 93.8 to 98.8 | 156 |
| Short-cycle tertiary | 96.9 | 94.1 to 99.7 | 111 |
| Master degree | 99.9 | 95.6 to 104.2 | 41 |
| Doctorate | 106.5 | 95.4 to 117.6 | 13 |
Average IQ in Brazil by study area
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 | 101.9 | 95.4 to 108.4 | 30 |
| 2 | Visual Arts | 101 | 91.5 to 110.5 | 21 |
| 3 | Engineering and Technology | 100.4 | 97.2 to 103.6 | 86 |
| 4 | Medicine and Health | 100.4 | 96.1 to 104.7 | 45 |
| 5 | Law | 98.8 | 93.4 to 104.2 | 27 |
| 6 | Business | 97.7 | 93.2 to 102.2 | 30 |
| 7 | No diploma | 97.1 | 95.1 to 99.1 | 272 |
| 8 | Economics | 96.7 | 89.2 to 104.2 | 20 |
| 9 | Languages and Literature | 96.7 | 91 to 102.4 | 23 |
Data last updated: 2026-06-18 (latest test submission).
Page refreshed: 2026-06-24 07:22:02.764 UTC (site build time).