Intelligence Quotient Percentile Chart

Here is the table of IQ reference scores and their meaning. The Intelligence Quotient reference Chart or table is used to determine the IQ percentile range of an individual. IQ or Intelligence Quotient is a total score which is derived from one of the various standardized tests that are designed to assess the human intelligence. The abbreviation 'IQ' was coined by the psychologist William Stern, a German psychologist and philosopher.

Check out the below IQ Score table and find out how smart you are. IQ scores are used for educational placement, assessment of intellectual disability, and evaluating job applicants.

IQ Reference Table

IQ Score RangeCategoryTypical Ability
0-24Profound Mental RetardationLimited or no ability to communicate, eat, bath, dress and toilet.
25-39Severe Mental RetardationLimited ability to communicate, eat, bath, dress and toilet. No academic skills.
40-54Moderate Mental RetardationSome independent self-help skills and very basic academic skills.
55-69Mild Mental RetardationUsually able to dress/bath independently and can do simple jobs. Elementary school academics.
70-79Border LineMay live independently with difficulties. Can perform simple and repetitive jobs.
80-89Low AverageCan complete vocational education and live independently.
90-109AverageCan complete high school graduation and college with difficulty.
110-119High AverageTypical level of college graduates.
120-129SuperiorTypical level of persons with doctoral degrees.
130-144GiftedCapable of understanding highly, complex academic material.
145-159GeniusException intellectual ability and capable of looking beyond known facts.
160-175Extraordinary geniusExtraordinary talent like Albert Einstein

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