Business & Tech Leaders

What is Mark Zuckerberg’s IQ?
A number nobody can source.

Mark Zuckerberg, portrait, 2025
Mark Zuckerbergb. 1984 · Technology

Mark Zuckerberg has no published IQ test result, and the 152 attached to him is not traced to any test, school record or statement by him. The documented record is Phillips Exeter (class of 2002), a teenage music program that AOL, WinAmp and Microsoft reportedly wanted to buy, and a Harvard stay that ended without a degree, from which this site infers 135–145.

Our estimate135–145
MethodAchievement and academic record
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Last reviewed October 2026
Our estimate

Mark Zuckerberg’s estimated IQ

IQ Metrics estimate135–145Achievement and academic record
What the estimate rests on
  • Admitted to Phillips Exeter Academy, from which he graduated in 2002, and then to Harvard, where he studied psychology and computer science before leaving without a degree.
  • Latin was a draw to Exeter, and The Harvard Crimson’s June 10, 2004 profile says he originally intended to study classics at Harvard before concentrating in computer science.
  • Co-wrote Synapse, a media player that learned a listener’s taste, as a student at Exeter; AOL, WinAmp and Microsoft expressed interest in buying it, according to The Crimson in 2004.
  • A reported perfect SAT is not counted as an input: no score report, school record or statement from him confirms it.

Every input here is a selection decision made by an admissions office, or a product built by a teenager. Both say something. Neither is a test.

At a glance
Born
May 14, 1984, White Plains, New York
Field
Software, social platforms
Education
Phillips Exeter Academy (2002); Harvard University (no degree; honorary Doctor of Laws, 2017)
Known for
Facebook, Instagram, WhatsApp, Meta
Nationality
American
Context

What an IQ of 135–145 actually means

Set the claim aside for a moment. If someone genuinely scored in this range, here is what that would represent.

Where a figure of 152 would sitOn the standard scale (mean 100, SD 15). This marks the claimed figure — it is not a measured result.
152
Below averageLow averageAverageAbove averageGiftedHighly gifted

Average is 100 by construction, and about two-thirds of people fall between 85 and 115. Take the test to place your own score on this scale.

Standard scale, mean 100, standard deviation 15
Score rangeClassificationShare of peopleWhat it indicates
85 – 114Average~68%The range most people fall into.
115 – 129Above average~13.6%Roughly one person in seven.
130 – 144Gifted~2%The threshold most high-IQ societies use.
Above 144Highly gifted~0.1%Figures above this range are extrapolated from the curve rather than measured.

Percentages are approximate and describe a normal distribution. The same number means different things on tests with different standard deviations.

Where would your score sit on that table?

Thirty questions gives you a measured position on this exact scale — your score, your percentile and the ability breakdown behind it.

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Background

Who Mark Zuckerberg is

Mark Zuckerberg was born in White Plains, New York, on May 14, 1984. At about age eleven he created ZuckNet, a program that let the computers in the family home and his father’s dental office communicate. He attended Ardsley High School before transferring to Phillips Exeter Academy, from which he graduated in 2002; The Crimson’s 2004 profile says Exeter’s Latin program was its major selling point for him.

At Exeter he and Adam D’Angelo wrote Synapse, a media player that tracked the songs a listener played and learned to build playlists. The Crimson dates its release to September 2002 and reported in 2004 that America Online, WinAmp and Microsoft, among others, expressed interest in buying it, with offers of up to about $1 million and one that reached about $2 million. The pair declined at first, and when they tried to accept an offer after college the company had lost interest.

At Harvard he studied psychology and computer science, and he launched TheFacebook on February 4, 2004. The company’s first office opened in mid-2004, and that summer he met Peter Thiel, who invested. Summaries often say he left Harvard in 2004; The Crimson reported on November 1, 2005 that he had announced he was dropping out, and Harvard’s own Gazette dates his departure to the fall of 2005. On May 25, 2017 he returned as the Commencement speaker and received an honorary Doctor of Laws.

What follows is the most-documented business career of his generation, and none of it involves a cognitive test. That is the whole point of this page: the record is enormous, and it contains no number.

Other technology founders get the same audit on this site, among them Steve Jobs and Elon Musk. For what Harvard admission implies in numbers, see our estimate of the average IQ of Harvard students.

Record

Mark Zuckerberg: the documented record

The estimate above rests on this record. Every entry here is a matter of public fact, which is more than can be said for the number itself.

  1. 1984Born in White Plains, New York, on May 14.
  2. c.1995At about age eleven, creates ZuckNet, which connects the computers at home and in his father’s dental office.
  3. 2002Graduates from Phillips Exeter Academy, which he joined from Ardsley High School.
  4. 2002Synapse Media Player, written with Adam D’Angelo at Exeter, is released in September; he begins classes at Harvard the same year.
  5. 2003Builds Facemash at Harvard; the college shuts it down within days.
  6. 2004Launches TheFacebook on February 4. The company opens its first office in mid-2004, and Peter Thiel invests.
  7. 2005The Crimson reports on November 1 that he has announced he is dropping out of Harvard indefinitely.
  8. 2012Facebook’s initial public offering.
  9. 2017Speaks at Harvard’s 366th Commencement on May 25 and receives an honorary Doctor of Laws.
  10. 2021The company is renamed Meta.
Where it came from

Where the 152 figure came from

Following a claim back to its first appearance is the part almost nobody does — and it is what most people are actually asking.

Mark Zuckerberg, portrait, 2025
2017Honorary Harvard degree

Zuckerberg is a useful case because the gap between what is known and what is asserted is so wide. His education is a matter of public record. His IQ is not a matter of any record at all.

The 152 is stated flatly and has no test behind it. Riot IQ’s article of July 20, 2026 says it dominates online discussion but cannot be traced to a psychometric source, and calls it an inference from behavior and biography. It adds that some sites anchor the figure to a reported SAT of 1590 rather than 1600, and that the conversion from that SAT to 152 is unpublished. Other pages reach other numbers, in bands of 140 to 155, and none attaches a test.

The SAT is the anchor most pages reach for, and it is unconfirmed. An explainer dated February 11, 2026 says the 1600 has not been officially confirmed by Zuckerberg or Harvard, and The Crimson’s 2003 and 2004 profiles do not mention an SAT result. A perfect score is also a ceiling: on the 1600-point scale it shows he was at the top, not how far above. As the SAT score to IQ conversion guide explains, there is no official conversion; the formula puts the 99.9th percentile near an IQ of 137 and the 99.99th near 145, give or take about 12 points, and reaching 152 would need a percentile above 99.999.

Another founder who left Harvard, Bill Gates, is also tied to a reported near-perfect SAT (1590), and the Google founders Larry Page and Sergey Brin are audited on the same terms: what the record supports, and what circulates without a source.

There is a second problem specific to founders. Company value is not a cognitive measurement: it reflects timing, capital, network effects and a great deal of luck. Reading an IQ back out of a valuation is circular, and it is what almost every figure in this category actually does. For scores that were measured, see what the Swedish data on billionaires’ IQ shows.

How we read a number →
InstitutionalHarvard Gazette, “Harvard awards 10 honorary degrees at 366th Commencement,” May 25, 2017

Lists Mark Zuckerberg among the ten recipients, as Doctor of Laws. He was the principal speaker at the afternoon program.

InstitutionalHarvard Gazette, “Make a difference, Zuckerberg tells Harvard graduates,” May 25, 2017

Says he dropped out and returned 12 years later as head of a company, and that he left Cambridge in the fall of 2005 for Silicon Valley.

InstitutionalHarvard Gazette, Zuckerberg’s Commencement speech as written, May 25, 2017

He calls himself an unlikely speaker because he dropped out, and jokes that finishing the speech would be the first time he finished something at Harvard.

InstitutionalPhillips Exeter Academy, profile of Darius Arya ’89

Lists Facebook founder Mark Zuckerberg with the class year ’02. The page carries no publication date.

SecondaryThe Harvard Crimson, “Not-So-Artificial Intelligence,” by S.F. Brickman, October 23, 2003

Describes Synapse, written by Zuckerberg and Adam D’Angelo at Exeter, dates its release to September 2002, and quotes one offer of $950,000 tied to a three-year job.

SecondaryThe Harvard Crimson, “Mark E. Zuckerberg ’06: The whiz behind thefacebook.com,” by Michael M. Grynbaum, June 10, 2004

Says Exeter’s Latin program was its major selling point for him and that he first meant to study classics. Reports that America Online, WinAmp and Microsoft, among others, expressed interest in buying Synapse.

SecondaryThe Harvard Crimson, “Zuckerberg to Leave Harvard Indefinitely,” by Sam Teller, November 1, 2005

Reports that he announced the previous afternoon that he would be dropping out of Harvard indefinitely; a spokesman left open a return years later.

SecondaryWikipedia, “Mark Zuckerberg”

Used only for undisputed dates: born May 14, 1984, in White Plains; ZuckNet at about age eleven; TheFacebook launched February 4, 2004; a first office in mid-2004.

AbsenceNo published IQ test result

Zuckerberg has not claimed a score. Neither Crimson profile (2003, 2004) mentions an IQ or an SAT result, and no school record has been published.

AggregatorRiot IQ, “What is Mark Zuckerberg’s IQ?”, July 20, 2026

Calls 152 untraceable to a psychometric source, cites estimates of 140 to 155 and a reported SAT of 1590, and says the SAT-to-152 conversion is unpublished.

AggregatorTutopiya explainer on his SAT score, February 11, 2026

Says he has been reported to have scored a perfect 1600 and that this has not been officially confirmed by him or Harvard. Names no original source.

Internaliqmetrics.org SAT score to IQ conversion guide

States there is no official SAT-to-IQ conversion and that even the 99.9th percentile predicts only about 137, with roughly 12 points of error either side.

The evidence

The sources behind our estimate

The figures that circulate for Mark Zuckerberg, what we were able to confirm, and where the two diverge.

Most widely cited152

152 is the figure that dominates online discussion of his IQ. A July 20, 2026 article on Riot IQ says it cannot be traced to any psychometric source, and other pages round it into bands or replace it with numbers of their own.

What we foundNo test result on record

No published evidence shows that Mark Zuckerberg has ever taken an IQ test. He has not claimed a score, no school record has been published, and The Crimson’s profiles of October 23, 2003 and June 10, 2004 mention neither an IQ nor an SAT result. No origin document for the 152 has been published.

Also published elsewhere
137152

The markers run from 137 to 152. 137 is where this site’s SAT-conversion formula lands for a score at the 99.9th percentile; 152 is the number that circulates. Other pages put him in a band of 140–155, and none attaches a test or a score report.

Want a number that does hold up? Every figure on this page is somebody’s claim. Take the 30-question test and get a percentile you can check rather than a figure you have to trust.

Questions

Mark Zuckerberg — frequently asked

What is Mark Zuckerberg’s IQ?

Mark Zuckerberg has no published IQ score; this site’s estimated IQ for him is 135–145, inferred from his record rather than measured. The 152 that circulates is not traced to any test, and he has never claimed a score. The inputs are documented: Exeter, Harvard, and Synapse, a music program that AOL, WinAmp and Microsoft reportedly wanted to buy.

How smart is Mark Zuckerberg?

The documented record shows a strong student and an early programmer, not a measured IQ. He graduated from Phillips Exeter Academy in 2002, wrote the Synapse music player there with Adam D’Angelo, and at Harvard studied psychology and computer science before leaving to run Facebook. Harvard gave him an honorary Doctor of Laws on May 25, 2017.

Does Mark Zuckerberg have a high IQ?

Probably, but no test shows it. Admission to Phillips Exeter Academy and Harvard, and software that large companies reportedly wanted to buy, point to well-above-average ability, which is why this site estimates 135–145. That estimate is an inference from achievement, not a measurement, so read the range as a judgment about the record.

What was Mark Zuckerberg’s SAT score?

A perfect 1600 is widely reported, and some pages say 1590, but no score report, school record or statement from him backs either figure. One explainer dated February 11, 2026 says the 1600 has not been officially confirmed by him or Harvard, and Riot IQ’s article of July 20, 2026 attributes the 1590 only to “some sites.” On the 400–1600 scale in use in 2002, 1600 was the maximum, so it would show he was at the ceiling without showing how far above it; the SAT score to IQ guide shows why even a 99.9th-percentile score converts to only about 137, give or take 12.

Is Mark Zuckerberg’s IQ 152?

No test supports it. The 152 is an online estimate; Riot IQ’s article of July 20, 2026 says it cannot be traced to a psychometric source and that estimates for him run from 140 to 155 depending on method. Reaching 152 from an SAT score with the guide’s formula would need a percentile above 99.999, about one person in 136,000, which a reported 1600 or 1590 cannot show.

Has Mark Zuckerberg ever taken an IQ test?

There is no public record of one. He has not claimed a score, and the earliest profiles of him, The Harvard Crimson’s of October 23, 2003 and June 10, 2004, mention neither an IQ test nor an SAT result. A test taken privately would not necessarily be public, so the lack of a record is not proof that he never sat one.

Did Mark Zuckerberg finish his Harvard degree?

No. He began classes at Harvard in 2002 and left to work on Facebook without a degree: The Crimson reported on November 1, 2005 that he had announced he was dropping out, and Harvard’s Gazette dates his departure to the fall of 2005. On May 25, 2017 Harvard gave him an honorary Doctor of Laws and he gave that year’s Commencement address; an honorary degree is recognition, not a completed course of study. Like Bill Gates, he left Harvard before graduating.

Does dropping out of Harvard say anything about intelligence?

Getting admitted does: our analysis puts the average IQ of Harvard students at about 130. Leaving does not. Admission is a selection signal; departure is a decision about opportunity cost, and his was unusually large.

Is a company’s value evidence of its founder’s IQ?

No. Valuations reflect timing, capital and network effects as much as ability. Inferring a score from a share price is circular reasoning, and it is what most figures in this category rest on.

How does my IQ compare with Mark Zuckerberg?

You can find out in about fifteen minutes. The IQ Metrics assessment is 30 questions, scored on the same 100-mean scale used throughout this page, so your result and the estimate above are at least expressed in the same units — one measured, one inferred. Once you have a number, the leaderboard shows where it would sit, and how we score and norm it explains the benchmarking.

Where does this estimate come from?

From the documented record rather than a test — the method is named above and set out in full under how we read a number. Compare it against the other business & tech profiles, starting with Steve Jobs.

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