Free IQ Test Lab

Free IQ test ยท new puzzles every time

No two tests are the same

Every attempt is built fresh from thousands of possible puzzles. Take the 10 minute quick test or the full 30 minute test, get your score and a certificate with your name free, and see exactly why each answer is right.

  • 5puzzle areas
  • 15 or 40puzzles, you choose
  • $0score and certificate

Try one

Five kinds of puzzle

Each test mixes all five and gets harder as you go. The examples below are generated live, so they change every time you load the page.

  • Patterns

    Spot how shapes, dots and arrows change, and say what comes next.

  • Numbers

    Number sequences, number grids and short everyday sums.

  • Logic

    Orderings, codes and statements: decide what must be true.

  • Shapes

    Turn shapes in your head, spot mirror images and unfold punched paper.

  • Analogies

    Work out the change in two examples and apply it to a third.

If 100 people took an IQ test

IQ scores are set so the average is 100. Each dot is one person: half of everyone lands in the average band, and only about 2 in 100 reach 130.

  • 2 in 100 very high (130 and above)
  • 7 in 100 high (120 to 129)
  • 16 in 100 above average (110 to 119)
  • 50 in 100 average (90 to 109)
  • 16 in 100 below average (80 to 89)
  • 9 in 100 low (below 80)

Your result shows you the same picture, with your own place among the 100.

What makes this test different

  • New puzzles every attemptQuestions are generated, not picked from a fixed list, so retaking the test or sharing it with friends does not give away the answers.
  • Every answer explainedAfter the test you see each puzzle again with the right option marked and a short note on the rule behind it.
  • Free certificateDownload your result with your name, sized for your phone or for printing.
  • Nothing to sign up forNo email, no account, no payment. The test runs in your browser and your answers are not sent to us.

How your score is worked out

  1. Puzzles are easy, medium or hard and are worth 1, 2 or 3 points.
  2. Your points are compared with the points available in your test.
  3. That share is placed on the IQ scale, where 100 is average and 15 points is one standard step.
  4. You see the estimate, a likely range, your place among 100 people and how you did in each area.

Read the full scoring method

What this test cannot tell you

  • It is a short online test, so the score is an estimate with a likely range of 8 points either side (12 on the quick test).
  • The scoring is based on how hard the puzzles were designed to be. It has not yet been checked against a large group of test takers.
  • It measures reasoning only. It says nothing about memory, creativity, knowledge or how well you work with people.
  • It is not a clinical assessment and is not suitable for school, medical or job decisions.

Questions people ask

Is the test really free?

Yes. You see your score, your percentile, how you did in each of the five areas and an explanation of every answer, and you can download a certificate with your name and score, all without paying, signing up or giving an email address.

How long does it take?

You choose. The quick test has 15 puzzles and a 10 minute limit. The full test has 40 puzzles and a 30 minute limit. If the clock runs out, the test is scored on the puzzles you answered.

Will I get the same questions as someone else?

Almost certainly not. Our puzzle generators can produce thousands of different puzzles, and every attempt draws a new set at random, so two people, or the same person on two devices, get different questions of the same difficulty.

How accurate is the score?

Treat it as a rough estimate. The test is taken at home without supervision, and its scoring has not yet been checked against a large sample of test takers. We show a likely range of 8 points either side of your score on the full test, and 12 points on the quick test.

Is this the same as a professional IQ test?

No. A clinical test such as the WAIS is given one to one by a psychologist, takes over an hour and covers areas this test does not, including memory and processing speed. This test only looks at reasoning.

Do you keep my answers?

No. The test runs inside your browser and your answers are not sent to us. Your last score is saved on your own device so you can see it next time, and you can clear it by clearing the site data in your browser.

Can I take it again?

Yes, as often as you like. Every attempt is built fresh from our puzzle generators, so you get a new set of questions each time rather than the same ones again. Getting used to the kinds of puzzle can still lift your score a little.

Ready for a fresh set of puzzles?