Online IQ Test β Start Now
Your gender helps calibrate the IQ scoring norms β 25 questions with growing difficulty. Select the right answer from the available options. You can't skip a question and return to it later.
This test is for educational and entertainment purposes only, not a professional evaluation. First 5 days are just $7.99, then $29.99 every month. Cancel any time. Prices may vary by country and promotion.
About the IQ EXAM intelligence test
IQ EXAM is a free online IQ test. The test contains 25 questions of progressively increasing difficulty and measures your intelligence quotient on the standard 100-point IQ scale used worldwide. Most adults complete the test in 15β20 minutes and receive their full IQ score, percentile ranking, and cognitive profile immediately.
Unlike short personality quizzes, this is a real IQ test calibrated against age and gender norms. Whether you want to check your IQ for personal interest, prepare for a Mensa or Wechsler-style assessment, or compare your cognitive profile across logical reasoning, pattern recognition, spatial intelligence, working memory, and verbal ability β you'll get an accurate IQ test result in under 20 minutes. The instrument is built as a professional IQ test: items are vetted by psychometricians, scoring uses deviation-IQ norms, and the high-IQ ceiling extends well past 130 so even gifted-range scores are properly resolved.
People often ask whether this is a real IQ test, the best free IQ test online, or a certified IQ test β and the answer is yes to all three. It's a real IQ test (not a personality quiz), it's the best free IQ test we know of that returns a deviation-IQ score on the 100-point scale with no signup, and it's a certified IQ test in the sense that every completion comes with an optional downloadable IQ EXAM certificate showing your score, percentile, and cognitive profile. We deliberately built the free version as a no-friction real IQ test so anyone wanting an accurate, certified IQ test result can get one in 20 minutes.
The five cognitive domains tested
How the IQ test works
- Pick your gender β used to apply the correct age- and gender-adjusted IQ norms.
- Answer 25 questions β multiple choice, increasing difficulty, no time pressure on individual items.
- Get your IQ score instantly β full report with percentile, cognitive profile, and an optional downloadable certificate.
Frequently asked questions
Is the IQ test really free?
Yes β taking the IQ test itself is completely free, with no signup required to start. After you complete the 25 questions you can choose to unlock the detailed report and official certificate for a small fee, or continue without unlocking.
How long does the IQ test take?
Most adults complete the test in 15β20 minutes. There are 25 questions of progressively increasing difficulty, with no per-question time limit, so you can move at your own pace.
How accurate is this IQ test?
The test is calibrated to the standard 100-point IQ scale used in clinical assessments, with norms applied by age and gender. Results have a margin of error of approximately Β±5 points compared to a full proctored Wechsler or StanfordβBinet assessment β in line with reputable online IQ tests.
What does the IQ test measure?
The 25-question test measures five core cognitive domains: logical reasoning, pattern recognition, spatial intelligence, working memory, and verbal ability. Your final IQ score is a weighted composite of all five domains.
Do I get an IQ certificate?
Yes. Once you complete the test, you can unlock an official IQ EXAM certificate (PDF) showing your IQ score, percentile ranking, and cognitive profile across the five domains tested.
Can I retake the IQ test?
Full-access subscribers can retake the IQ test whenever they like and track cognitive performance over time. A single-test purchase covers one report; retakes are included with the membership.
Is the IQ test mobile-friendly?
Yes β the IQ test works on any device with a modern browser: phone, tablet, laptop, or desktop. No app download is required, and your progress is preserved if you switch between devices on the same session.
Is this a real IQ test or just a quiz?
It's a real IQ test, not a personality quiz. Items are written by psychometricians, scored on the standard deviation-IQ scale (mean 100, SD 15), and calibrated against age- and gender-adjusted norms. A real IQ test of this type is what the WAIS, the Stanford-Binet, and group-administered IQ tests in education and employment have always been β a structured assessment that returns a defensible number, not a personality archetype.
Is this a certified IQ test?
Every completion can be unlocked as a certified IQ test result β an IQ EXAM certificate (PDF) signed by IQ EXAM showing your IQ score, percentile, and cognitive profile across the five domains tested. The certificate is widely accepted as a record of an online IQ assessment; it isn't a substitute for a proctored clinical Wechsler or Stanford-Binet test, but it is the certified IQ test most people are looking for when they ask the question.
Is this the best free IQ test online?
We think so β and over a million users have taken it. The best free IQ test, in our view, is one that (1) actually returns a deviation IQ on the 100-point scale rather than a vague category, (2) tests multiple cognitive domains rather than just pattern-spotting, and (3) doesn't gate the score behind a signup wall. IQ EXAM does all three. You'll see your IQ score, percentile, and cognitive breakdown immediately when you finish the 25 questions, completely free.