Free IQ Test
Untimed, no sign-up, results shown instantly as an honest range.
Before you start
- There is no clock. This is a power test: take the time each question needs. Rushing helps nothing.
- Each question has exactly one correct answer. If you are truly stuck, choose your best guess and move on — a blank counts the same as a wrong answer.
- You can change answers freely within a chapter, but not after leaving it.
- Your progress saves automatically on this device; you can close the tab and finish later.
- Two practice questions come first. They don't count.
Your age group (optional)
Reasoning speed and style shift with age, so knowing your band makes the interpretation fairer. Skipping it just scores you against all adults.
Not for employment, clinical, or educational-placement decisions. How this test works and what it can't tell you.
What makes this IQ test different
Most online IQ tests share three problems: they paywall the score after you've invested half an hour, they hand back a single flattering number no measurement could justify, and they serve everyone the same recycled questions. This test is built the opposite way. It is free the whole way through — no email, no paid report. It reports a range with a stated margin of error, because that is what a 36-question test can honestly support. And its questions are generated fresh for every attempt by a rule-based engine, so the test cannot be memorised, leaked, or practised from an answer key.
It is also deliberately untimed. Timed tests mix processing speed into a reasoning score, which penalises older test-takers and anxious ones. Here, the clock never runs; take the time each puzzle needs.
The four domains
Pattern reasoning · 14 questions
Matrix puzzles: find the rule governing a 3×3 grid and complete it. The classic culture-fair measure of fluid reasoning — no words, no numbers, no learned knowledge.
Sequences · 8 questions
Number and letter series governed by a single consistent rule. Every sequence is machine-verified to have exactly one defensible continuation before it reaches you.
Spatial rotation · 7 questions
Identify the same 3D object in a different orientation — with its mirror image among the traps. Deliberately capped at 7 of 36 questions: spatial rotation shows the largest average sex difference of any cognitive task, so letting it dominate would tilt the test.
Verbal reasoning · 7 questions
Analogies and category reasoning over deliberately everyday words — the relationships are the puzzle, never the vocabulary. Prefer no words at all? Take the culture-fair version.
The IQ scale, honestly explained
| Range | Share of people | Common label |
|---|---|---|
| 130+ | ≈ 2% | Very superior — typical high-IQ-society threshold |
| 115–129 | ≈ 14% | High average to superior |
| 85–114 | ≈ 68% | Average — where most people are |
| 70–84 | ≈ 14% | Low average |
| Below 70 | ≈ 2% | Clinical assessment territory — see a professional, not a website |
Labels like these compress a lot of noise into tidy boxes. Two attempts by the same person on different days routinely differ by several points — which is exactly why this test reports a range. For the full picture, see the IQ scale explained and average IQ by age.
Related Calculators
Frequently Asked Questions
Is this IQ test really free?
Yes — completely. You see your full result the moment you finish: the score range, your percentile, and the per-domain breakdown. There is no email gate, no paid report, no certificate upsell, and no subscription. Many "free" IQ tests collect 30–40 minutes of your answers and then charge to reveal the score; this one never will.
Why is there no time limit?
Because timed administration measures speed as well as reasoning, and published research shows time pressure costs test-takers around 3–5 raw points on matrix tests — with the biggest penalty falling on older adults and anxious test-takers. This is a power test: it measures whether you can solve the problem, not how fast. We record timing quietly to improve question calibration, but it never affects your score.
How accurate is an online IQ test?
Honest answer: a well-built online test can estimate reasoning ability within a band of roughly ±5–10 points, and that is exactly how we report it — as a range, never a single number. A clinically valid IQ score requires a psychologist-administered instrument like the WAIS-IV or Stanford–Binet, with controlled conditions and professionally gathered norms. No online test is a substitute for that, including this one.
What do IQ scores mean?
IQ scores are scaled so the average is 100 and each 15 points is one standard deviation. About 68% of people score between 85 and 115, and about 95% between 70 and 130. A score of 130 puts you around the 98th percentile — roughly the threshold high-IQ societies use. Crucially, an IQ score is relative to your age group: raw reasoning performance changes across life, so the same raw result means different things at 25 and at 70.
Can I take the test more than once?
Yes, and unlike fixed-question tests, this one generates new questions every attempt — so a retake is a genuine re-measurement, not memory. Expect a small familiarity bump on an immediate retake (a few points; research on alternate-form retesting finds about 0.2 standard deviations). For a comparable reading, wait a couple of weeks.
What does the test measure — and what doesn’t it?
It samples four reasoning domains: pattern reasoning (matrix puzzles), sequences, spatial rotation, and verbal relationships. Together these load on general fluid reasoning — the strongest common factor in cognitive ability. It does not measure creativity, emotional intelligence, knowledge, wisdom, or worth. And no IQ test measures the things that most determine what people accomplish with their reasoning: curiosity, persistence, and opportunity.