IQ Score Traditional Ranking System
140 + (~.25%) Genius or near genius
130 - 139 Gifted
120 - 129 Very Superior Intelligence
110 - 119 Superior Intelligence
90 - 109 Average/Normal
80 - 89 Dullness
70 - 79 Borderline deficiency
50 - 70 Mild mental retardation
35-50 Moderate mental retardation
20 - 35 Severe mental retardation
< 20 Profound mental retardation (1%)

The distribution of IQ scores is as follows:
50% of IQ scores fall between 90 and 110
70% of IQ scores fall between 85 and 115
95% of IQ scores fall between 70 and 130
99.5% of IQ scores fall between 60 and 140
A score of 132 equals the top 2%
A score of 134 equals the top 1%
A score of 68 equals the bottom 2%
A score of 66 equals the bottom 1%



The Highest IQs On Record
People Still Alive
Physicist / Engineer Kim Ung-yong has a verified IQ of 210
Bouncer Christopher Michael Langan has a verified IQ of 195
Engineer Philip Emeagwali is alleged to have an IQ of 190
World Chess Champion Garry Kasparov is alleged to have an IQ of 190
Author Marilyn Vos Savant has a verified IQ of 186
Actor James Woods is alleged to have an IQ of 180
Politician John H. Sununu is alleged to have an IQ of 180
Prime Minister Benjamin Netanyahu is alleged to have an IQ of 180
Mathematician Andrew Wiles is alleged to have an IQ of 170
World Chess Champion Judith Polgar is alleged to have an IQ of 170
Chess Grandmaster Robert Byrne is alleged to have an IQ of 170
World Chess Champion Bobby Fischer is alleged to have an IQ of 167
Mathematician / Physicist Stephen W. Hawking is alleged to have an IQ of over 160
Microsoft Founder Paul Allen is alleged to have an IQ of over 160
Actress Sharon Stone is alleged to have an IQ of 154
From the Past
In 1926, psychologist Dr. Catherine Morris Cox - who had been assisted by Dr. Lewis M. Terman, Dr. Florence L. Goodenaugh, and Dr. Kate Gordon - published a study “of the most eminent men and women” who had lived between 1450 and 1850 to estimate what their IQs might have been. Data from that study as well as other sources around the net were compiled to form the following list. Please drop me a comment if you have additions or corrections (make sure and cite sources).


190 - Ludwig Wittgenstein
190 - Sir Isaac Newton
190 - François-Marie Arouet (Voltaire)
180 - Leonardo da Vinci
180 - David Hume
180 - Buonarroti Michelangelo
179 - Johann Wolfgang von Goethe
176 - Emanuel Swedenborg
176 - Gottfried Wilhelm von Leibniz
175 - Johannes Kepler
175 - Edmund Spenser
175 - Baruch Spinoza
174 - John Stuart Mill
171 - Blaise Pascal
170 - Michael Faraday
170 - George Friedrich Händel
170 - Antoine Lavoisier
170 - Martin Luther
165 - Galileo Galilei
165 - Charlotte Brontë
165 - Johann Sebastian Bach
165 - Thomas Hobbes
165 - Carl von Linné
165 - John Locke
165 - Joseph Priestley
165 - Ludwig van Beethoven
165 - Samuel Johnson
162 - René Descartes
162 - Madame De Stael
160 - Albert Einstein
160 - Robert Boyle
160 - Benjamin Franklin
159 - Immanuel Kant
156 - Linus Carl Pauling
156 - Sofia Kovalevskaya
156 - Thomas Chatterton
156 - Olof Palme
155 - Rembrandt van Rijn
155 - Miguel de Cervantes
155 - Jonathan Swift
153 - Charles Darwin
153 - Wolfgang Amadeus Mozart
150 - George Eliot (Mary Ann Evans)
150 - Nicolaus Copernicus
150 - Abraham Lincoln
145 - Napoleon Bonaparte
145 - Anna Lindh
143 - George Sand (Aurore Dupin)
140 - George Washington
130 - Ulysses S. Grant
130 - Sir Francis Drake

Hw do i knw ur i.q