Free IQ Test

Good to know

Twelve matrix reasoning puzzles: find the shape that belongs in the empty bottom-right cell of each 3×3 grid. Finish within 5 minutes to see how many you got right and a for-fun IQ estimate. No email or sign-up, and the score is not a clinical IQ result.

Rule	What changes
Number	One, two or three shapes, going up or down.
Size	Small, medium and large.
Fill	Outline, striped and solid take turns.
Shape	Three of circle, square, triangle, diamond and hexagon swap places row by row.
Rotation	An arrow or triangle turns 45 or 90 degrees per cell.

How to find the missing cell

Check one property at a time: first the number of shapes, then the fill, and so on.
If every row holds the same three values once each, the answer is the value missing from the last row.
An option identical to the cell just left of or above the blank is a common trap.

The for-fun IQ is IQ = 100 + 7.5 × (correct − 6). Zero correct gives 70, six gives 100, nine gives 123 and twelve gives 145.

Correct	For-fun IQ	Top % on the IQ curve
0 / 12	70	98%
3 / 12	78	93%
6 / 12	100	50%
8 / 12	115	16%
9 / 12	123	6%
10 / 12	130	2%
12 / 12	145	1%

How it works

1
Press Start. Look at how the shapes change along each row before you pick.
2
Tap the option that fits the empty cell and the next puzzle appears. Skip any you are stuck on. After 5 minutes the test is scored with what you have.
3
Watch the red-pen grading, tap a number to see the right answer, then save your score card or send a friend the same 12 puzzles.

FAQ

Is this IQ test really free? Do I need an email?

It is free, and there is no email gate or sign-up. Puzzles are generated in your browser and your answers and score are never sent to a server. We only keep anonymous usage counts.

Is the IQ number accurate?

No, it is an estimate for fun. Real IQ tests are normed on large samples and given under controlled conditions. We have no norm data, so we assume 6 of 12 correct is average (IQ 100) and 2 questions equal one standard deviation (15 points): IQ = 100 + 7.5 × (correct − 6), capped between 70 and 145.

Are these real Mensa test questions?

No. Only the format is the same as Raven’s Progressive Matrices and Mensa practice puzzles: find the rule in a 3×3 grid of shapes. Every puzzle here is generated by combining rules. To qualify for Mensa you need to take a supervised test through your national Mensa.

What kinds of rules appear?

Five: number of shapes (1 to 3), size, fill (outline, striped, solid), shape, and rotation. A value can step up or down along a row, or three values can each appear once per row in shifting order. Difficulty rises every three puzzles, and the last three combine three rules at once.

Do I get the same puzzles if I retake it?

A new attempt gives new puzzles with shuffled answer positions, so guessing one letter does not work. If you open a friend’s challenge link you get exactly the same 12 puzzles they solved, so the scores compare fairly.

What happens when the timer runs out?

After 5 minutes the test is scored with the answers you picked, and unanswered puzzles count as wrong. Your time is shown on the card but does not change the score.

How is the “top %” worked out?

IQ scores are defined on a normal curve with mean 100 and standard deviation 15. The top % (or your rank out of 100 when below average) places your for-fun IQ on that curve. It is not a ranking among people who took this test. For example, 115 is the top 16% and 130 the top 2%.

Can kids take it?

Yes, but the conversion ignores age, so comparing a child’s number with an adult’s is not meaningful. Look at how many they solved and which rules they spot best.

More tools

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The five rules in the puzzles