Free IQ Test
Know how you think.
Scores vary with concentration, familiarity, and conditions — how scoring works.
35 questions · 25-minute limit · instant score and percentile · free, no email required
A sample question
Here is a fuller worked example than the mini one on the test card above. Every item follows the same shape: a 3×3 grid governed by a hidden rule, with the bottom-right cell left blank for you to complete from six options. This one sits at the easy end of the ramp — real items stack several rules at once.
What this test measures
This test measures fluid reasoning — your ability to spot a rule you were never taught and apply it on the spot. It is built in the tradition of Raven's Progressive Matrices, the classic nonverbal reasoning test, so it leans on no vocabulary, general knowledge, or arithmetic. Every question is the same kind of puzzle: a 3×3 grid of shapes governed by a hidden pattern, with one cell left blank for you to complete.
The 35 items are arranged as a deliberate ramp across six difficulty tiers — trivial, easy, medium, hard, very hard, and brutal. The early tiers turn on a single, easily spotted rule; the later ones layer several rules that must all hold at once, which is where the test separates strong pattern-recognisers from the rest.
The rules come from a small, fixed vocabulary. A feature might stay constant along a row or column; three variants of a shape, fill, or size might be distributed so each appears exactly once per line; a count might step up, a shape might grow or shrink, or an element might rotate a fixed number of degrees at each step. In the toughest grids two layers of shapes also combine — one added to, subtracted from, or overlaid on another — and a single item can stack as many as five rules, so solving it means holding every rule in mind simultaneously.
How scoring works
Your raw score is simply the number of items you answer correctly. We convert that into a deviation IQ — the standard way intelligence scores are expressed — on a scale centred on a mean of 100 with a standard deviation of 15. An average performance lands at 100, each additional correct answer moves you about two and a half points along the scale, and results are reported across the 60–145 range this test covers.
Your percentile is read from the standard normal curve for that mean and standard deviation. It tells you the share of people you scored higher than: a percentile of 84 means you scored above roughly 84% of typical test-takers — a different number from the percentage of questions you got right. Because the curve is densest in the middle, small differences near the average shift your percentile more than the same difference far out at the tails.
The scale is design-anchored — fitted to a deliberately built difficulty ramp — rather than normed against a population study, which we think is the honest way to describe it.
Read the full methodology for the exact raw-to-IQ formula, what “calibrated” means here, and the threshold comparison in detail.
Score bands
Once your IQ number is set it falls into one of six interpretation bands. Each band's percentile span is derived from the same standard normal curve used to score the test, so the band label and your percentile always agree.
| IQ Range | Percentile | Classification |
|---|---|---|
| 130–145 | 98th–99th | Exceptional |
| 115–129 | 84th–97th | Superior |
| 101–114 | 53rd–82nd | Above Average |
| 85–100 | 16th–50th | Average |
| 70–84 | 2nd–14th | Low Average |
| 60–69 | 1st–2nd | Below Average |
Frequently asked questions
Is this IQ test free?
Yes — the test is completely free, with no account, email address, or payment required. It runs entirely in your browser, your answers are scored on your own device, and only the finished score travels onward if you choose to share it. The site is funded by display ads and optional paid certificates, never by charging for the test itself.
How long does the test take?
You have a 25-minute limit for all 35 questions, and most people finish comfortably within it. There is no reward for rushing: difficulty rises steadily, so the sensible strategy is to move quickly through the early items and spend your remaining time on the harder ones. When the timer reaches zero the test submits automatically and scores whatever you have answered.
Do I need to prepare for the test?
No preparation is needed — a fluid-reasoning test measures how you handle unfamiliar patterns, not knowledge you can revise. There is nothing to memorise and no syllabus to study. The most useful things you can do are simple: take it somewhere quiet, when you are rested, on a screen large enough to see each matrix clearly.
Can I take the test on my phone?
Yes — the test runs in any modern mobile browser with no app to install. That said, a larger screen genuinely helps: the matrices are detailed, and squinting at a cramped phone display can cost you correct answers and pull your score down. If you have a tablet or laptop handy, it is the fairer way to see what you can do.
How accurate are online IQ tests?
Online IQ tests, including this one, are estimates rather than clinical measurements. This test uses the same progressive-matrix format as well-known nonverbal reasoning tests and is self-consistent, but it was not normed against a supervised population study. Treat your result as a solid snapshot of your pattern-recognition ability, and read the methodology for exactly what “calibrated” means here.
Can I retake the test?
You can retake the test as often as you like, but expect your score to drift upward on a second attempt. This is a well-documented practice effect: you recognise the pattern types faster the second time, which inflates the result without reflecting any real change in ability. We never reveal which option was correct on any item, precisely so the test stays fair across retakes.
What IQ do you need for Mensa?
Mensa admits people who score in the top 2% of the population — roughly IQ 131 on a 15-point standard-deviation scale, the 98th percentile. A result from this test cannot qualify you for Mensa: the society only accepts scores from its own supervised testing or a short list of approved, professionally administered instruments. We are not affiliated with Mensa, and any comparison we make is purely to that statistical threshold.
Is this a real IQ test?
It is a real pattern-recognition test built on Raven's Progressive Matrices, the same nonverbal reasoning format used in established IQ assessments. What it is not is a clinical, diagnostic instrument. A formal IQ measurement comes from a test like the WAIS-IV or Stanford-Binet, administered one-on-one by a licensed psychologist. This is an honest estimate for curiosity and practice, and we describe it that way on purpose.
What is the average IQ?
The average IQ is 100 by definition. IQ scales are built so that the mean of the population sits at 100 with a standard deviation of 15, which means roughly two-thirds of people score between 85 and 115. Your score says how far you land from that midpoint, not how many questions you answered correctly — see the average IQ by age guide for why the average stays 100 at every age.
What does my percentile mean?
Your percentile is the share of people you scored higher than, not the share of questions you got right. A percentile of 84 means you scored above roughly 84% of typical test-takers. Because the bell curve is densest in the middle, a few extra correct answers near the average move your percentile more than the same gain out at the tails. Our percentile calculator converts any IQ score into its percentile.
What is a good IQ score?
A “good” IQ score depends entirely on what you compare it to, but as a rule of thumb anything above 115 already places you in the top ~16% of the population. Most scores fall between 85 and 115, so a result in that range is squarely typical rather than a cause for concern. Our guide to what counts as a good IQ score unpacks the numbers in full.
An important disclaimer
This test is designed for education and entertainment. It is an online estimate, not a clinical assessment, and it should never be used to make clinical, educational, or employment decisions. A formal, diagnostic IQ score comes only from an instrument such as the WAIS-IV or the Stanford-Binet, administered one-on-one by a licensed psychologist — not from any website, ours included. We are also not affiliated with any high-IQ society; where we mention an admission threshold, it is a factual comparison on a shared statistical scale and nothing more.
Keep reading
Want to understand your result in more depth? These guides go further, and the percentile calculator converts any score on the spot.
- What Is a Good IQ ScoreWhere any given number sits on the curve, and why context is everything.
- IQ Score ChartThe full bell curve mapped to percentiles and classifications.
- Average IQ by AgeWhy the average is always 100 at every age, and how norming works.
- How IQ Tests WorkWhat these tests measure and how a raw count becomes a score.
Or jump straight to the percentile calculator.