Flag of Belgium

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
101.1
95% CI: 99.4 to 102.8
Validated / All N
290 / 634
Validation rate: 45.7%
p10 / Median (p50) / p90
p10: 83.2
p50: 101.4
p90: 120.4
Avg time
37:20
Last updated
2026-03-06
View
Current view N: 290

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 groupMean IQ95% CIN
Young Adult (19-35)101.698 to 105.281
Youth (12-18)100.197.2 to 10345
Adult (36-65)99.997.7 to 102.1147
Senior (66-100)98.992.5 to 105.317

Average IQ in Belgium by gender

Gender table
GenderMean IQ95% CIN
Male102.6100.4 to 104.8159
Female97.795.5 to 99.9131

Average IQ in Belgium by education level

Small sample: at least one group has N<50 (estimates are unstable).
Education table (largest samples)
Education levelMean IQ95% CIN
Primary or Secondary99.897 to 102.6105
Bachelor102.499.2 to 105.670
Master degree104100.1 to 107.948
Post Secondary97.392.5 to 102.135
Short-cycle tertiary100.997 to 104.829
Doctorate116105.1 to 126.93

Average IQ in Belgium by study area

Note: groups with N<20 are hidden by default.
Top study areas in Belgium (N >= 20)
RankStudy areaMean IQ95% CIN
1Engineering and Technology108.6102.8 to 114.432
2Economics99.292.2 to 106.228
3No diploma98.896.3 to 101.393
Data last updated: 2026-03-06 (latest test submission).
Page refreshed: 2026-03-07 16:19:40.838 UTC (site build time).

Related statistics