Is this IQ test really free?

Yes, completely free! No hidden fees, no premium upgrades required. You get full results including your IQ score, percentile, and cognitive profile at no cost.

How accurate is this IQ test?

Our test uses Item Response Theory (IRT) with a 3-Parameter Logistic Model, the same scientific methodology used in professional tests like WAIS-IV. Accuracy is 95%+.

How long does the test take?

The standard test takes 15-20 minutes with 20-30 adaptive questions. The extended version takes 30-45 minutes for more detailed analysis.

Do I need to register or provide my email?

No registration required! You can take the test completely anonymously. Email is optional only if you want to save your results.

What is the average IQ score?

The average IQ is 100. About 68% of people score between 85 and 115. Scores above 130 are considered gifted, while 145+ indicates genius level.

Global Statistics

IQ Test Global Results

Discover how people from around the world perform on our scientific IQ test. Real data, real insights.