Free IQ Test
Take this free IQ test with 30 questions covering pattern recognition, logical reasoning, mathematics, memory, and spatial thinking. Get your estimated IQ score instantly with category breakdowns. No sign-up, no paywall — 100% private and free.
How This Free IQ Test Works
This IQ test assesses cognitive ability across 5 domains: pattern recognition, logical reasoning, mathematical ability, working memory, and spatial reasoning. You will answer 30 timed questions of increasing difficulty. Your responses are scored and normalized to the standard IQ scale where 100 is the average, with a standard deviation of 15 points.
IQ Score Ranges
Below 70: Borderline — Significant cognitive challenges
70–84: Low Average — Below typical range
85–114: Average — Most people score here
115–129: High Average — Above typical range
130–144: Gifted — Top 2% of population
145+: Genius — Exceptionally rare intelligence
What Does an IQ Score Measure?
IQ (Intelligence Quotient) measures cognitive abilities relative to the general population. It assesses fluid intelligence — your ability to reason, recognize patterns, and solve novel problems — rather than crystallized intelligence (learned knowledge). Modern IQ tests like the Wechsler Adult Intelligence Scale (WAIS) and Stanford-Binet measure multiple cognitive domains rather than a single "intelligence" number.
IQ Test Categories Explained
Pattern Recognition: Identifying rules and sequences in visual or numerical patterns. This is often considered the purest measure of fluid intelligence. Logical Reasoning: Deductive and inductive reasoning through word problems and syllogisms. Mathematical Ability: Numerical computation, arithmetic reasoning, and quantitative problem-solving. Working Memory: Holding and manipulating information in your mind. Spatial Reasoning: Mental rotation, visualization, and understanding spatial relationships.
Is This IQ Test Accurate?
Online IQ tests provide an estimate, not a clinical measurement. Professional IQ tests (WAIS-IV, Stanford-Binet 5) are administered by psychologists over 1-2 hours and provide the most accurate results. This test gives a reasonable approximation based on well-established cognitive challenge types. For an official IQ assessment, consult a licensed psychologist.