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
100.5
95% CI: 99.4 to 101.6
Validated / All N
666 / 1,786
Validation rate: 37.3%
p10 / Median (p50) / p90
p10: 82.7
p50: 100.7
p90: 117.6
Avg time
42:24
Last updated
2026-05-07
View
Current view N: 666
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) | 103.1 | 101.5 to 104.7 | 297 |
| Youth (12-18) | 99.5 | 97.1 to 101.9 | 160 |
| Adult (36-65) | 97.9 | 96 to 99.8 | 199 |
| 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 | 363 |
| Female | 98.6 | 97.1 to 100.1 | 303 |
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 | 100.5 | 98.5 to 102.5 | 197 |
| Primary or Secondary | 100.1 | 97.9 to 102.3 | 186 |
| Master degree | 102.1 | 99.3 to 104.9 | 109 |
| Post Secondary | 98.4 | 96 to 100.8 | 100 |
| Short-cycle tertiary | 101 | 97.6 to 104.4 | 66 |
| Doctorate | 108.3 | 96.9 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 | 100.9 to 111.1 | 22 |
| 2 | Computer Science | 105.4 | 101.4 to 109.4 | 33 |
| 3 | Visual Arts | 103.5 | 98 to 109 | 39 |
| 4 | Engineering and Technology | 102.5 | 99.5 to 105.5 | 60 |
| 5 | Economics | 100.8 | 97.2 to 104.4 | 49 |
| 6 | No diploma | 100.2 | 98.4 to 102 | 215 |
| 7 | Business | 100 | 95.4 to 104.6 | 38 |
| 8 | Languages and Literature | 95.8 | 91.4 to 100.2 | 31 |
| 9 | Medicine and Health | 94.6 | 90.4 to 98.8 | 25 |
Data last updated: 2026-05-07 (latest test submission).
Page refreshed: 2026-05-09 09:09:15.245 UTC (site build time).