IQ 143
An IQ of 143 is higher than 99.79% of people: about 1 in 482.
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- 99.79th
- Percentile
- 1 in 482
- Score 143 or higher
- Gifted
- Classification
That puts 143 in the gifted range, above the 130 line commonly quoted for Mensa's 98th percentile entry.
An IQ of 143 falls in the genius level IQ range, which covers 140 to 159. Find 143 on the IQ chart, or check how rare any score is with the IQ rarity calculator.
The gifted range: what an IQ of 143 means
About 1 in 482 people reach 143. In a school of 1,000 that is roughly 2 pupils, which is why 143 counts as gifted by most educational definitions.
Gifted is an education label, not a medical one. Schools and programmes set their own cutoffs, often around 130, and many use several measures rather than a single score.
The Study of Mathematically Precocious Youth followed children identified in roughly the top 1% of reasoning ability. As adults they earned doctorates, patents and senior roles at rates far above the general population.
The Mensa threshold and 143
Is 143 Mensa level? It is above the line: Mensa's entry point is the 98th percentile on an approved, supervised test, usually quoted as 130 on an SD 15 scale. LifeScore is not affiliated with Mensa, and no online score, including ours, counts for entry.
Other societies set higher bars. Intertel asks for the top 1%, which starts at about 135, and the Triple Nine Society asks for the top 0.1%, about 146. 143 clears the first line but not the second.
If you are curious about Mensa, the practical step is a supervised test. A result of 143 from an online test is a reasonable signal that it may be worth doing, not proof either way.
How 143 can show up in life
What does a 143 feel like from the inside? Accounts vary a lot, but a few themes come up again and again:
- Being quick is not the same as being right. Checking your working protects you from confident mistakes.
- Uneven profiles are common, for example very strong visual reasoning alongside average processing speed.
- Routine work can get boring fast, so variety and challenge tend to matter.
How many people have an IQ of 143 or higher?
If IQ follows the standard bell curve, 0.21% of people score 143 or higher. Here is what that share means across whole populations:
| Where | Population | IQ 143+ |
|---|---|---|
| UK | 68 million | 140,000 |
| US | 335 million | 690,000 |
| World | 8.1 billion | 17 million |
In a lecture hall of 300, you would expect about one person to score 143 or higher.
Exactly 143, counting anyone between 142.5 and 143.5, is about 1 in 2,300. In the US that is about 150,000 people, and in the UK about 30,000 people.
These are model estimates: a bell curve applied to whole populations, including children, rounded. They are not census counts, and real test norms differ a little from one test to another.
How rare is an IQ of 143?
An IQ of 143 or higher is 2.7 times rarer than 138 or higher, and 148 or higher is 3 times rarer again. At this point on the curve, each extra point makes a score about 24% rarer.
What your 143 could really be. Even a good supervised test has a margin of error of roughly 5 points either side. A true score anywhere from 138 to 148 would be consistent with a 143, which spans the 99.4th to the 99.93rd percentile. Short online tests have wider margins.
Which scale was it on? A 143 reported on an SD 16 scale converts to about 140 on the usual SD 15 scale, and one from an SD 24 scale (seen in some Cattell-style results) to about 127. Check which scale your score report used.
Famous people with an estimated IQ near 143
The gifted range is where many retrospective estimates for historical leaders, writers and activists land. These sit near 143, with the figures people look up most listed first. Every figure below is a retrospective estimate, not a measured score. Open a profile to see the evidence and how confident anyone can be.
- Napoleon Bonaparte's IQ (estimated 145): Emperor of the French, 19th Century. 2 points above IQ 143.
- Marcus Aurelius' IQ (estimated 145+): Roman Emperor & Philosopher, Ancient Rome. 2 points above IQ 143.
- Alan Watts' IQ (estimated 145+): Philosopher & Speaker, 20th Century. 2 points above IQ 143.
- Charles Dickens' IQ (estimated 145+): Novelist, 19th Century. 2 points above IQ 143.
- Confucius' IQ (estimated 145+): Philosopher, Ancient China. 2 points above IQ 143.
Also estimated near 143: Georg Wilhelm Friedrich Hegel's IQ (estimated 145+), Hypatia's IQ (estimated 145+), Pablo Picasso's IQ (estimated 145+), Rembrandt van Rijn's IQ (estimated 145+), Thomas Hobbes' IQ (estimated 145+), Benjamin Franklin's IQ (estimated 150+).
Fictional characters near 143
For fun, not science: fan estimates for characters near 143, based on how they reason in their stories.
- Patrick Jane's IQ (fan estimate 143): The Mentalist.
- Doctor Strange's IQ (fan estimate 145): Marvel Cinematic Universe. 2 points above IQ 143.
- Hermione Granger's IQ (fan estimate 147): Harry Potter. 4 points above IQ 143.
See all historical IQ estimates or all fictional character IQs.
Degrees, universities and jobs around 143
Our degree, university and job profiles carry rough IQ benchmarks. These are the ones within a few points of 143. The education figures are derived from admissions-test averages, not from IQ testing.
Universities
- Carnegie Mellon UniversityPittsburgh, PA142
Benchmarks describe rough group averages. They are not requirements, and admissions, hiring and success all depend on far more than a test score.
143 compared with nearby scores
Nearby scores and the round-number landmarks, so you can see how quickly the percentile changes around 143. Every row links to that score's page.
| IQ | Classification | Percentile | Score higher |
|---|---|---|---|
| IQ 100 | Average | 50th | 50% |
| IQ 110 | High Average | 74.8th | 25% |
| IQ 120 | Superior | 90.9th | 9.1% |
| IQ 130 | Gifted | 97.7th | 2.3% |
| IQ 138 | Gifted | 99.4th | 0.56% |
| IQ 140 | Gifted | 99.62nd | 0.38% |
| IQ 142 | Gifted | 99.74th | 0.26% |
| IQ 143 | Gifted | 99.79th | 0.21% |
| IQ 144 | Gifted | 99.83rd | 0.17% |
| IQ 148 | Genius | 99.93rd | 0.069% |
| IQ 150 | Genius | 99.96th | 0.043% |
What an IQ of 143 looks like on the SAT, ACT and other tests
People with an IQ of 143 typically score about 1560 on the SAT and about 34 on the ACT composite. Scores vary a lot from person to person, so the range shows where about four in five land.
| Test | Typical score | Likely range |
|---|---|---|
| SAT | 1560 | 1380 to 1600 |
| ACT | 34 | 27 to 36 |
| GRE | 334 | 319 to 340 |
| LSAT | 170 | 160 to 179 |
| Wonderlic | 37 | 31 to 43 |
| ASVAB | 99 | 94 to 99 |
Estimates from a regression model with published inputs and stated assumptions. How the conversion works, or convert your own score.
Questions about an IQ of 143
Is 143 a good IQ?
What percentile is an IQ of 143?
Is 143 genius level?
What does an IQ of 143 mean?
How rare is an IQ of 143?
What is the mental age for an IQ of 143?
Next in IQ scores
More in IQ scores
- IQ 115 percentileOne step above average
- IQ 120 percentileSuperior range, top 10%
- IQ 125 percentileAbout 1 in 20 people
Related tools
- IQ rarity calculatorHow rare a score is, as 1 in N
- IQ chartEvery band and what it means
- IQ bell curvePlot a score on the distribution
Is your IQ above 143?
See where you land next to 143 with 25 visual reasoning questions.
25 questions · about 12 minutes
Percentiles and counts use a normal distribution with mean 100 and standard deviation 15. Real tests have their own norms, confidence intervals and ceilings, so treat every figure here as an approximation, not a diagnosis. Two tests often give different numbers for the same person: here is why.
By the LifeScore Editorial Team. Reviewed October 2026. Editorial policy