IQ Tester

Take a free, scientifically-designed IQ test to measure your cognitive abilities and get instant results with detailed analysis.

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About This Tool

Our free IQ tester provides a comprehensive assessment of your cognitive abilities through carefully designed questions that measure logical reasoning, pattern recognition, and problem-solving skills. The test is age-adjusted and based on established psychometric principles to give you an accurate IQ score with percentile ranking and detailed interpretation. No registration or personal information required - get your results instantly.

Save your calculation history with a free account

How to Use

Enter your age for age-adjusted scoring
Answer all 20 multiple-choice questions
Click 'Calculate My IQ Score' to get your results
View your IQ score, percentile ranking, and detailed interpretation
Use the 'Retake Test' button to try again

Frequently Asked Questions

Find Quick Answers

How accurate is this free IQ test?

This test uses scientifically-designed questions based on established cognitive assessment principles. While it provides a good estimate of your IQ, it's not a substitute for professional psychological testing administered by a qualified psychologist.

How is the IQ score calculated?

Your score is calculated based on the number of correct answers, adjusted for your age using standard psychometric formulas. The final IQ score follows the standard deviation of 15 points, with 100 as the average.

Is my data stored or shared?

No, all test responses are processed locally in your browser. We don't store, collect, or share any personal information or test results.

Can I retake the test?

Yes, you can retake the test as many times as you want. Simply click the 'Retake Test' button to start over with a fresh set of questions.

What do the percentile rankings mean?

Percentile ranking shows how you compare to the general population. For example, a percentile of 75 means you scored higher than 75% of people in your age group.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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