Average IQ in Sri Lanka
Sri Lanka has an average IQ of 86, ranking #107 out of 195 countries globally. This is considered below average on the worldwide scale.
Key Statistics
Education System in Sri Lanka
Sri Lanka offers free education from primary through university level, resulting in one of the highest literacy rates in South Asia.
IQ and Economic Development
Sri Lanka's GDP per capita of $13,380 reflects a developing economy. Research shows a moderate correlation (r ≈ 0.7) between national GDP and measured IQ, though this relationship is complex and bidirectional.
With 10.8 average years of schooling and a 2.1% GDP investment in education, Sri Lanka has room to increase education investment relative to GDP.
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Countries with Similar IQ Scores
Asia Rankings
| # | Country | Avg IQ |
|---|---|---|
| 1 | Singapore | 108 |
| 2 | Japan | 106 |
| 3 | South Korea | 106 |
| 4 | China | 106 |
| 5 | North Korea | 102 |
| 6 | Mongolia | 101 |
| 7 | Israel | 100 |
| 8 | Vietnam | 99 |
| 9 | Kazakhstan | 96 |
| 10 | Malaysia | 95 |
Data Sources for Sri Lanka
National IQ estimates are approximate and based on meta-analyses of available cognitive testing data (Becker, 2019; Lynn & Vanhanen, 2012; World Population Review, 2025). These scores reflect measured test performance and are influenced by education, nutrition, healthcare, and socioeconomic factors — they do not measure innate intelligence. Within-country variation is much larger than between-country differences. IQ tests developed in Western contexts may not translate fairly across all cultures. Interpret with appropriate caution.
See the full methodology on our main IQ by Country page for complete source descriptions and data quality notes.
Frequently Asked Questions
See where your own score lands.
Sri Lanka's average is an estimate from limited data. Your own number is something you can measure: take the free 50-question IQ test for your exact score and where you land against every country on this map.