Free · No email · 20 minutes
IQ Test
30 picture and number questions, 20 minutes, no sign-up. You get your score right away, shown as a range, with every step of how it was worked out.
What's on the test
Three kinds of IQ test questions, none of them in words
There is no vocabulary, no trivia and no arithmetic drill. Each question hides a rule: you find it and pick the answer that follows it. Because nothing depends on reading, the test works the same in any language.
Pick a type and try a real practice question:
A 3 × 3 grid of shapes where every row and column follows the same rules. Work out the rules and pick the missing cell.
Which figure completes the pattern?
Show the answer and the rule
Read the grid row by row. Fill: each row and each column contains all three values exactly once. count: the value stays the same across a row and changes between rows. The missing cell must therefore be 4 medium dotted circles.
A row of numbers built by one hidden rule, sometimes two taking turns. Find the rule and pick the next number. The arithmetic stays simple; the work is spotting the rule.
Which number comes next?
4, 7, 13, 22, 34, 49, ?
Show the answer and the rule
The gaps between terms grow by 3 each step (3, 6, 9, …). So the next term is 67.
Shape A turns into shape B. Apply the same change to shape C and pick the result.
The first figure changes into the second. Apply the same change to the third figure.
Show the answer and the rule
Between the first two figures only the shape changes, from square to diamond. Applying that same change to the third figure gives 3 small dotted diamonds.
Everything in this panel comes from the practice set, never from the scored bank. Nothing you press here is recorded, and none of it appears on the test itself.
How scoring works
How your IQ score is calculated
Four steps, all of them boring, which is the point.
Count your correct answers
Your raw score is how many of the 30 scored questions you got right. Two extra trial questions are mixed in to test new items. They never count toward your score.
Take away what guessing would have earned
Each question you get wrong, skip or don't reach costs a quarter of a point. That is what random clicking earns on average, so guessing through the whole test scores about zero instead of a flattering 20%.
Place it on the IQ scale
Your corrected score is compared with people who finished this test properly, then converted to the standard IQ scale: 100 is the middle and 15 points is one standard deviation, the usual distance from the middle. Until enough tests are finished, a provisional formula is used, and your result says so.
Show the margin of error
30 questions can only pin a score down so far. We measure how consistently the questions agree with each other, turn that into a margin of error, and show the range your score most likely falls in.
Reading your score
IQ score ranges: where scores fall
Scores cluster in the middle by construction: the scale is defined so most people land between 85 and 115.
One limit to keep in mind: your score is compared with people who chose to take this test online, not with the whole population. Read it as your position among them.
FAQ
Frequently asked questions
Is this IQ test accurate?
Why is my score shown as a range?
What is a good IQ score?
How long does the IQ test take?
Is it really free? Do I need an email?
Can I retake the IQ test?
What happens to my answers?
Ready when you are
30 questions, 20 minutes, and a score you can actually interpret.
A screening test for personal insight. Not a clinical or diagnostic assessment.