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The Intelligence Quotient (IQ) is a measure of human intelligence derived from a score from standardized questions designed specifically to measure intelligence. IQ tests are designed to measure reasoning ability, which pertains to how well a person can use logic to answer questions that involve making predictions. Traditional IQ scores range between 40 to 160+, with a middle score hovering around 85-115 points. A graph of the IQs of a population follows a normal distribution (bell curve), where the most frequent scores are near the mean score of 100 points. 96% of people have IQ scores between 55-130 points, while less than 2% of people have IQ scores lower than 55 points and less than 2% of people have IQ scores higher than 130 points.

TIQ scores are most commonly classified by the Wechsler Adult Intelligence Scale (WAIS), which measures the intelligence and cognitive ability of adults. The WAIS scale is based on David Wechsler’s IQ tests, which are considered to be the gold standard of IQ tests administered in English. The fourth edition of the WAIS (WAIS-IV) was published in 2008 by The Psychological Corporation and is still used to classify levels of intelligence.

Did you know Leonardo Da Vinci's IQ was 181 and the beloved Muhammad Ali's IQ was reported to be just 78?

Our digital IQ Test is a highly accurate online IQ assessment available completely online across all mobile and laptop devices. Our questions assess your abilities in spatial recognition; mathematical ability; and analytical thinking.

In our test, users have the options to use a timer to take the test under timed conditions. This is preferable and provides a more accurate test result.

Questions in our test are not necessarily organized by difficulty, so make sure that you pace yourself and have plenty of time to attempt all the questions.