Free IQ test
24 reasoning puzzles in 20 minutes. Your score appears on screen the moment you finish. No email, no sign-up.
Start the free IQ testEvery puzzle is original and drawn for this test. You get your score on the IQ scale free; a full report with explanations is optional.
Try one: which option completes the grid?
Four kinds of puzzle
Six of each, taking turns, from easy to hard. None needs language or general knowledge: each puzzle has a rule to find, and the answer follows from it.
- ?
Matrix reasoning
Find the rule that runs across the rows of a 3 x 3 grid and complete the missing box.
2, 6, 12, 20, ?
Number series
Work out how a row of numbers is built and give the next one.
- ?
Shape sequences
Follow how a picture changes from step to step and pick the next step.
Odd one out
Spot the one figure that breaks the rule the other four share.
What you get
Free, on screen
- Your score on the IQ scale
- How many puzzles you got right, and how long you took
- Where your score sits on the bell curve
Full report, $14.99 once
- Your score on each of the four puzzle types
- Your rank among everyone who has taken the test
- Every puzzle you missed, drawn again with a worked explanation
- Time spent on each puzzle
- A printable certificate and the report as a PDF
One payment, no subscription. You decide after you see your free score.
How the score is worked out
IQ scores compare people: 100 is the average, and about two thirds of people score between 85 and 115. So your score depends on how other people do on the same puzzles.
We log every finished test anonymously (score, time and which puzzles were right, never names or emails) and work out scores from where a result falls among real test-takers. Until enough people have taken this version, the score is marked as a provisional estimate and uses a stated starting assumption.
Read how the score works, or look up what scores mean on the IQ scale and what counts as an average IQ.
Questions
- Is the IQ test really free?
- Yes. You take all 24 puzzles and see your score on the IQ scale without paying and without giving an email address. The full report is an optional extra for $14.99.
- How long does it take?
- You have 20 minutes for 24 puzzles. Most of the early puzzles take well under a minute; the last few take longer.
- Is this an official IQ test?
- No online test is. Clinical IQ tests such as the WAIS are given one to one by a trained psychologist. This is an online reasoning test: it measures how you do on its puzzles and puts that on the IQ scale, and the score works as an estimate, not a diagnosis.
- Why might my score say provisional?
- A score on the IQ scale means comparing you with other people. Until enough people have taken this version, the score uses a stated assumption instead. The How the score works page explains both methods.
- Can I take it on my phone?
- Yes. The puzzles are drawn to fit a phone screen. A larger screen makes the detailed drawings easier to see.
- Can I retake the test?
- Yes, as often as you like. Retakes usually score higher because the puzzles are familiar, so only first attempts count when we compare people.