Average IQ in the United Kingdom
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
100.4
95% CI: 99.3 to 101.5
Validated / All N
646 / 1,751
Validation rate: 36.9%
p10 / Median (p50) / p90
p10: 82.8
p50: 100.4
p90: 117.2
Avg time
42:18
Last updated
2026-04-20
View
Current view N: 646
IQ distribution in the United Kingdom (p10-p90)
United Kingdom
85100115
IQ score
IQ breakdowns in the United Kingdom by age, gender, education, and study area
Average IQ in the United Kingdom 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) | 103.2 | 101.6 to 104.8 | 288 |
| Youth (12-18) | 99.1 | 96.9 to 101.3 | 154 |
| Adult (36-65) | 97.7 | 95.9 to 99.5 | 194 |
| Senior (66-100) | 96.3 | 85.5 to 107.1 | 10 |
Average IQ in the United Kingdom by gender
Gender table
| Gender | Mean IQ | 95% CI | N |
|---|---|---|---|
| Male | 102.2 | 100.7 to 103.7 | 353 |
| Female | 98.4 | 96.9 to 99.9 | 293 |
Average IQ in the United Kingdom 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 | 100.7 | 98.7 to 102.7 | 191 |
| Primary or Secondary | 99.7 | 97.6 to 101.8 | 178 |
| Master degree | 102.1 | 99.3 to 104.9 | 107 |
| Post Secondary | 98.2 | 95.7 to 100.7 | 98 |
| Short-cycle tertiary | 101.3 | 97.9 to 104.7 | 64 |
| Doctorate | 108.4 | 97.1 to 119.7 | 8 |
Average IQ in the United Kingdom by study area
Note: groups with N<20 are hidden by default.
Top study areas in the United Kingdom (N >= 20)
| Rank | Study area | Mean IQ | 95% CI | N |
|---|---|---|---|---|
| 1 | Mathematics | 106 | 100.3 to 111.7 | 21 |
| 2 | Computer Science | 105.2 | 101.4 to 109 | 32 |
| 3 | Visual Arts | 103.5 | 97.7 to 109.3 | 38 |
| 4 | Engineering and Technology | 102.3 | 99.3 to 105.3 | 59 |
| 5 | Economics | 101.1 | 97.4 to 104.8 | 48 |
| 6 | Business | 100 | 95.4 to 104.6 | 38 |
| 7 | No diploma | 99.8 | 98 to 101.6 | 205 |
| 8 | Languages and Literature | 95.8 | 91.3 to 100.3 | 31 |
| 9 | Medicine and Health | 95.2 | 90.4 to 100 | 24 |
Data last updated: 2026-04-20 (latest test submission).
Page refreshed: 2026-04-21 19:38:15.069 UTC (site build time).