IQ Test
Check your logical thinking and pattern recognition with this 20-question test and get an instant IQ estimate.
This test is for fun and self-exploration, not a clinical or professional diagnostic tool. Your answers are processed entirely on your device and are never sent or stored anywhere.
How to use
- 1
Press “Start the test” and the 15-minute timer begins.
- 2
Each question has four (sometimes five) answer options — pick the one you think is correct.
- 3
Questions are ordered from easy to hard, so answer the early ones quickly and save time for the hard ones.
- 4
You can skip a question and come back to it later using the dot navigation.
- 5
Your result appears as soon as you answer every question or the time runs out.
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Formula
Each question is worth 1–3 points depending on difficulty. Your total is converted to the IQ scale with a linear mapping anchored so that average performance ≈ 100 and a perfect score ≈ 140.
The IQ scale is modeled as a normal distribution with a mean of 100 and a standard deviation of 15 — about 68% of people score between 85 and 115, and 95% between 70 and 130.
Frequently asked questions
What is IQ?
IQ (Intelligence Quotient) is a numeric measure of logical reasoning, pattern recognition, and problem-solving ability. The average is 100, and most people score between 85 and 115.
How accurate is this test?
This is a simplified 20-question quiz, so treat the result as a rough estimate. Official IQ tests (such as WAIS or Raven's Progressive Matrices) are administered professionally under standardized conditions.
Why are most questions visual?
Shape and pattern questions depend far less on language, culture, and education, so they measure reasoning more fairly. Tests built this way are called culture-fair tests.
Can I retake the test?
Yes — but the questions don't change, so keep in mind that a second attempt will likely score higher than your true ability.