Free IQ Test: Measure Your Intelligence Online
Take this free online IQ test and get your score instantly. 20 questions across logical, numerical, verbal, and spatial reasoning — no sign-up required.
Free Cognitive Reasoning Quiz
20 questions across numerical, verbal, spatial, and logical reasoning domains.
No time limit. No sign-up. All scoring happens in your browser.
Based on formats from the International Cognitive Ability Resource (ICAR).
Frequently Asked Questions
What does an IQ test measure?
An IQ test measures cognitive abilities including logical reasoning, pattern recognition, working memory, processing speed, verbal comprehension, and spatial reasoning. IQ scores follow a normal distribution with a mean of 100 and standard deviation of 15.
Is this IQ test free?
Yes. CogniArena's IQ test is completely free. No sign-up, no payment, and no data collection. You get instant results with a score estimate and percentile ranking.
How accurate is this online IQ test?
This IQ test uses question formats inspired by the ICAR framework, which correlates with established measures like Raven's Progressive Matrices. However, it is a 20-question estimate and not a substitute for a professionally administered cognitive evaluation.
What is a good IQ score?
IQ scores follow a bell curve: 85-115 is average (68% of people), 115-130 is above average, and 130+ is considered gifted. The average IQ is 100 by definition.