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
100.3
95% CI: 99.1 to 101.5
Validated / All N
569 / 1,545
Validation rate: 36.8%
p10 / Median (p50) / p90
p10: 82.4
p50: 99.7
p90: 117.8
Avg time
40:18
Last updated
2026-02-08
View
Current view N: 569
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 | 101.3 to 104.9 | 250 |
| Youth (12-18) | 98.4 | 96 to 100.8 | 130 |
| Senior (66-100) | 98 | 85.6 to 110.4 | 9 |
| Adult (36-65) | 97.9 | 96 to 99.8 | 180 |
Average IQ in the United Kingdom by gender
Gender table
| Gender | Mean IQ | 95% CI | N |
|---|---|---|---|
| Male | 102 | 100.3 to 103.7 | 299 |
| Female | 98.5 | 96.9 to 100.1 | 270 |
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 | 100.9 | 98.7 to 103.1 | 165 |
| Primary or Secondary | 98.7 | 96.4 to 101 | 154 |
| Master degree | 102.4 | 99.5 to 105.3 | 101 |
| Post Secondary | 98.1 | 95.4 to 100.8 | 85 |
| Short-cycle tertiary | 101.4 | 97.6 to 105.2 | 57 |
| Doctorate | 108.3 | 95 to 121.6 | 7 |
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 | 106.4 | 100 to 112.8 | 20 |
| 2 | Computer Science | 105.6 | 100.5 to 110.7 | 27 |
| 3 | Visual Arts | 104.2 | 98.3 to 110.1 | 35 |
| 4 | Engineering and Technology | 102.2 | 98.2 to 106.2 | 48 |
| 5 | Business | 101.2 | 96.5 to 105.9 | 36 |
| 6 | Economics | 100.9 | 96.4 to 105.4 | 42 |
| 7 | No diploma | 98.8 | 96.8 to 100.8 | 172 |
| 8 | Languages and Literature | 95.3 | 91.6 to 99 | 28 |
| 9 | Medicine and Health | 95.3 | 90.7 to 99.9 | 21 |
Data last updated: 2026-02-08 (latest test submission).
Page refreshed: 2026-02-08 19:21:31.990 UTC (site build time).