Average IQ in Belgium
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
101.4
95% CI: 100 to 102.8
Validated / All N
427 / 899
Validation rate: 47.5%
p10 / Median (p50) / p90
p10: 83.4
p50: 101.6
p90: 121.1
Avg time
37:50
Last updated
2026-06-17
View
Current view N: 427
IQ distribution in Belgium (p10-p90)
Belgium
85100115
IQ score
IQ breakdowns in Belgium by age, gender, education, and study area
Average IQ in Belgium 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) | 103.1 | 100.5 to 105.7 | 134 |
| Adult (36-65) | 99.9 | 98 to 101.8 | 202 |
| Senior (66-100) | 99.1 | 94.1 to 104.1 | 25 |
| Youth (12-18) | 98.9 | 96 to 101.8 | 66 |
Average IQ in Belgium by gender
Gender table
| Gender | Mean IQ | 95% CI | N |
|---|---|---|---|
| Male | 102.3 | 100.4 to 104.2 | 232 |
| Female | 98.8 | 97 to 100.6 | 195 |
Average IQ in Belgium 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 |
|---|---|---|---|
| Primary or Secondary | 99.5 | 97.3 to 101.7 | 138 |
| Bachelor | 102.6 | 100 to 105.2 | 108 |
| Master degree | 105.5 | 102.6 to 108.4 | 83 |
| Short-cycle tertiary | 100.2 | 97.2 to 103.2 | 48 |
| Post Secondary | 96.8 | 93.4 to 100.2 | 46 |
| Doctorate | 116.3 | 110 to 122.6 | 4 |
Average IQ in Belgium by study area
Note: groups with N<20 are hidden by default.
Top study areas in Belgium (N >= 20)
| Rank | Study area | Mean IQ | 95% CI | N |
|---|---|---|---|---|
| 1 | Engineering and Technology | 108.8 | 104.2 to 113.4 | 48 |
| 2 | Computer Science | 107.7 | 101.5 to 113.9 | 20 |
| 3 | Visual Arts | 102.5 | 96.6 to 108.4 | 24 |
| 4 | Medicine and Health | 102.4 | 98.8 to 106 | 22 |
| 5 | Economics | 100.4 | 95.6 to 105.2 | 44 |
| 6 | No diploma | 98.7 | 96.5 to 100.9 | 125 |
Data last updated: 2026-06-17 (latest test submission).
Page refreshed: 2026-06-23 04:57:32.894 UTC (site build time).