World IQ Scores by Country

Average IQ score by country — compare intelligence quotient by country rankings across 40+ nations. World IQ scores based on Lynn & Vanhanen (2012), Rindermann (2018), and Becker (2019) research.

IQ is measured as an intelligence quotient using standardized intelligence tests with a standard deviation of 15 points. The global average IQ score is 100. Average IQ in Europe tends to be higher than the international IQ average, while scores vary widely across continents. Use the filters below to explore countries rankings by region.

How does your IQ compare?