My IQ TestFree · 40 questions · Instant results
Discover Your IQ in 20 Minutes
A free online IQ test that estimates your reasoning ability across logic, patterns, numbers and spatial thinking — with an honest explanation of what the score means.
IQ scores follow a bell curve with an average of 100.
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How it works
1. Answer 40 questions
Ten each in logical reasoning, pattern recognition, numerical sequences and spatial reasoning.
2. Beat the clock
You have 20 minutes. Your progress saves automatically if you close the tab.
3. See your results
Get an estimated IQ, percentile and a chart of your strengths — then share it.
What test takers say
“Clear questions and a results page that actually explains what the number means. Refreshingly honest about the margin of error.”
“I liked that it didn't ask for my email before showing my score. The category breakdown was genuinely useful.”
“The guides are the best part — the article on the Flynn effect sent me down a rabbit hole for an evening.”
“Twenty minutes felt about right. Tough matrix questions near the end, in a good way.”
A free IQ test online, built for adults
My IQ Test is a free IQ test online that you can take from any phone, tablet or computer. There is no sign-up, no payment and no email required — just 40 questions, a 20-minute timer and your estimated IQ score the moment you finish.
An IQ test for adults
Our IQ test for adults is designed for people aged 16 and over. Questions cover four areas of reasoning used in well-known intelligence tests: logical reasoning, pattern recognition (matrix puzzles), numerical sequences and spatial thinking. Difficulty rises as you go, so the final questions separate strong scores from exceptional ones.
What you get with your free result
- An estimated IQ score on the standard scale (average 100, standard deviation 15)
- Your percentile — how you compare with the general adult population
- A breakdown by category, so you can see your strongest reasoning skill
- A plain-language explanation of what your score does and doesn't mean
How accurate is an online IQ test?
A free online IQ test gives a useful estimate, not a clinical diagnosis. Only a licensed psychologist using a supervised test can give an official IQ score. We're open about the margin of error and explain it on your results page. Read our IQ guide to learn how IQ scores work.
Private by design
Your answers are scored in your browser and never sent to us. Questions? Our customer service team is available 24/7.
Understand intelligence
Browse the full IQ guideWhat Is IQ? A Clear Guide to the Intelligence Quotient
What IQ actually measures, where the idea came from (Binet, Wechsler), and what an IQ score can and cannot tell you.
The IQ Scale Explained: What Every Score Range Means
A plain-English breakdown of IQ score ranges, percentiles and classifications, from below 70 to 145 and above.
Average IQ by Country: What the Data Can and Can't Show
Estimated national IQ averages with the methods behind them, the major criticisms, and why the numbers should be read carefully.
Average IQ by Profession: What Research Suggests
Typical IQ ranges reported for different occupations, why the ranges overlap so much, and what really predicts career success.
Average IQ by Age: How Thinking Abilities Change Over Time
Why the average IQ is 100 at every age, and how fluid and crystallized abilities actually rise and fall across the lifespan.
How to Improve Your Cognitive Skills: An Evidence-Based Guide
What really helps sharpen memory, focus and reasoning — from sleep and exercise to deliberate learning — and what is mostly hype.
Your answers never leave your device — scoring happens in your browser.