What is Sharon Stone’s IQ?
The 154 traces to a 1999 magazine remark, not to a test.
No IQ test result for Sharon Stone has ever been published: the 154 that circulates as her IQ score traces to a 1999 press remark that she possessed it, with no test, date or scorer named. On the standard scale (mean 100, SD 15) 154 would sit above the 99.98th percentile; the documented record shows an early-placed student, not a measured score.
Sharon Stone’s estimated IQ
- Wikipedia describes her as academically gifted as a child, entering second grade at age five.
- Admitted to Edinboro State College at 15 on a creative-writing scholarship, an unusually young admission, though she left before completing the degree.
- Returned to Edinboro University in 2016, at 58, and completed the degree she had left decades earlier.
Grade-skipping and an early scholarship admission are real, documented signals, but they are school placement decisions, not test scores. The range is an inference from the documented record, not a measurement, and should be read as looser than the site’s test-anchored estimates.
- Born
- March 10, 1958, Meadville, Pennsylvania
- Field
- Film and television acting
- Education
- Edinboro State College, entered at 15; completed the degree at Edinboro University in 2016
- Known for
- Basic Instinct (1992); Casino (1995), Golden Globe winner
What an IQ of 130–145 actually means
Set the claim aside for a moment. If someone genuinely scored in this range, here is what that would represent.
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.
| Score range | Classification | Share of people | What it indicates |
|---|---|---|---|
| 85 – 114 | Average | ~68% | The range most people fall into. |
| 115 – 129 | Above average | ~13.6% | Roughly one person in seven. |
| 130 – 144 | Gifted | ~2% | The threshold most high-IQ societies use. |
| Above 144 | Highly 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.
Thirty questions gives you a measured position on this exact scale — your score, your percentile and the ability breakdown behind it.
Find out in 30 minutes →Who Sharon Stone is
Sharon Stone was born on March 10, 1958, in Meadville, Pennsylvania. Wikipedia reports that she entered second grade at age five and was admitted to Edinboro State College on a creative-writing scholarship at fifteen, after graduating from Saegertown High School in 1975.
She left college and moved to New York City to model; by 1977 she had signed with the Ford Modeling Agency. Her acting career led to Basic Instinct (1992) and an Academy Award nomination for Casino (1995), for which she won a Golden Globe.
Did Sharon Stone go to college? Yes. She entered Edinboro State College at fifteen, left to model, and in 2016, at 58, returned to Edinboro University of Pennsylvania to complete her degree, a documented fact that gets far less attention than the Mensa story.
By Elora Mercer, Celebrity Research WriterFigures checked by Leon Falkner, Data & Research AnalystReviewed by Aarav Vardhan, Editor-in-Chief · Last reviewed November 2026
.jpg){kind=link}
Sharon Stone: 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.
- 1958Born in Meadville, Pennsylvania.
- c. 1963Enters second grade at age five.
- c. 1973Admitted to Edinboro State College at fifteen on a creative-writing scholarship; later leaves without finishing.
- 1975Graduates from Saegertown High School.
- 1977Signed by the Ford Modeling Agency.
- 1992Basic Instinct is released.
- 1995Casino; wins the Golden Globe for Best Actress, Drama, and receives an Academy Award nomination.
- April 20, 1999Salon reports that she “boasts of possessing an IQ of 154.”
- 2002Mensa’s national marketing director says she is not a Mensa member, as later summarized by Neatorama (2009).
- 2016Returns to Edinboro University and completes her degree.
- 2021Publishes her memoir, The Beauty of Living Twice.
Where the 154 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.
What is Sharon Stone’s IQ? The record holds no test result. The Sharon Stone IQ figure that circulates, 154, appears in Salon on April 20, 1999 as something she “boasts of possessing”; the item names no test and no examiner. On a scale with mean 100 and SD 15, 154 is a z-score of 3.6, above the 99.98th percentile (about 1 person in 6,300). The percentile calculator shows how that conversion works.
Is Sharon Stone in Mensa? Mensa says its only qualification is a score in the upper 2% of the general population on an approved, supervised test (mensa.org), roughly 131 on the SD 15 scale. Neatorama’s 2009 summary says Mensa’s national marketing director stated in 2002 that she was not a member. Our guide to Mensa score requirements explains the cutoffs by test. Compare James Woods, whose Mensa claim sits in the same category.
Did Sharon Stone take an IQ test? None has been published, and 154 is not a Mensa-approved result. A figure with no test name, date or scorer is a reported claim, which is the pattern described in where celebrity IQ numbers come from. The one documented, checkable record is academic: second grade at five, college at fifteen, degree completed in 2016.
Among actors with a documented education record, Natalie Portman, Jodie Foster and Emma Watson are the closer comparisons for degrees and schooling; see the other actors we have checked.
How we read a number →States she “boasts of possessing an IQ of 154”; names no test, date or examiner.
Gives a “reported IQ of 154,” second grade at five, Edinboro admission at fifteen and the 2016 return to complete the degree.
Membership requires a score in the upper 2% of the general population on an approved, supervised intelligence test.
Summarizes the 2002 statement by Mensa’s national marketing director that she was not a member; spells his name Blackstone and gives 156.
No score report, school test or clinician’s account has been published.
Aggregator sites give different figures with no cited source.
The sources behind our estimate
The figures that circulate for Sharon Stone, what we were able to confirm, and where the two diverge.
Stone has been widely described as a Mensa-level thinker, and figures as high as 154 (with 140, 148, 150 and 156 also appearing on different sites) circulate as her IQ.
The 154 is a quoted claim, not a test result. Salon’s April 20, 1999 column on her address to newspaper editors says she “boasts of possessing an IQ of 154”; it names no test, date or examiner. Wikipedia calls it a “reported IQ of 154.” A 2009 Neatorama summary of the Mensa episode reports that in 2002 Mensa’s national marketing director said she was not a member and that her “Mensa school” explanation could not be right. No score report, test or clinician’s account has ever been published.
A five-way spread across sources that cite nothing is, in this site’s recurring pattern, the signature of a number that was never measured, not evidence that several different measurements exist.
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.
Sharon Stone — frequently asked
What is Sharon Stone’s IQ?
No test result has been published; the figure that circulates is 154. Salon reported on April 20, 1999 that she “boasts of possessing an IQ of 154,” naming no test or examiner. On the SD 15 scale 154 is above the 99.98th percentile, but without a named test it is a claim.
What is Sharon Stone’s IQ score and level?
Her IQ score is unmeasured in any public record. The reported 154 is not tied to a named test, so no IQ level can be assigned to it. Our range of 130–145 is an inference from her documented school record, not a measurement.
Is Sharon Stone in Mensa?
No. Mensa admits only people scoring in the upper 2% on an approved, supervised test. Neatorama’s 2009 summary says Mensa’s national marketing director stated in 2002 that she was not a member and that her “Mensa school” explanation could not be right.
Is Sharon Stone smart?
Her documented record shows early academic placement: second grade at five, a creative-writing scholarship to Edinboro State College at fifteen (Wikipedia), and a degree completed in 2016. These are school decisions, not test scores, so they show ability without giving an IQ.
Did Sharon Stone go to college?
Yes. She entered Edinboro State College at fifteen on a creative-writing scholarship, left to model in New York, and returned to Edinboro University of Pennsylvania in 2016 to complete her degree, according to Wikipedia.
Where does the figure 154 come from?
The earliest source read is Salon’s April 20, 1999 column, which says she boasts of an IQ of 154. Wikipedia calls it a “reported IQ of 154.” Neatorama gives 156 instead. None names a test, a date or a scorer.
How high would an IQ of 154 be?
On a scale with mean 100 and SD 15, 154 is a z-score of 3.6, above the 99.98th percentile, about 1 in 6,300. It would exceed the roughly 131 that corresponds to Mensa’s upper-2% cutoff, but only if a supervised test had produced it.
How does my IQ compare with Sharon Stone?
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 actors profiles, starting with Natalie Portman.
- Take the 30-question IQ test — get a measured score and percentile of your own
- Average IQ by country — how the scale behaves across populations
- How IQ Metrics scores its assessment — the method behind our own number
- More on how IQ testing works — reliability, error and what a score can and cannot say
- More actors profiles — same field, same method
More actors
Photograph by iDominick, CC BY-SA 2.0. Background removed for the portrait above. · Photograph by Kevin Paul, CC BY 4.0. Background removed for the portrait above. · Photograph by Bernhard Holub, CC BY-SA 4.0. Background removed for the portrait above.
An estimate is an inference.
Yours can be measured.
Thirty questions, scored against general-population benchmarks. Your score, your percentile, your ability breakdown and a printable IIF certificate.
Find your IQ score now! →