IQ 105

An IQ of 105 is higher than 63.1% of people: about 1 in 3.

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63.1st
Percentile
1 in 3
Score 105 or higher
Average
Classification
70100130averageIQ 105
Higher than 63.1% of people

In a class of 30, about 19 people would score 105 or lower and about 11 higher. That is where most people land.

An IQ of 105 falls in the average IQ range, which covers 90 to 109. Find 105 on the IQ chart, or check how rare any score is with the IQ rarity calculator.

IQ 105: where most people land

If you lined up 100 random adults by score, a 105 would put you at about position 63 from the bottom. That is inside the 85 to 115 band that roughly 46 million people in the UK share.

Average is not a polite word for mediocre. It is where the test is designed to place the typical adult, and it is the level that most schooling, jobs and everyday tasks are built around.

Within this range, scores a few points apart are closer together than the test's own margin of error. A 102 and a 108 could easily be the same person on different days.

What 105 means in everyday life

The 5-point gap between 105 and 100 is about the size of the test's own margin of error. You would not spot it in a conversation or at work.

You can follow complex instructions, learn new software, manage money and pick up a trade or profession. The ceiling on those is set far more by practice and interest than by a few IQ points.

Where a score like this shows is mainly in speed on unfamiliar, timed problems. Given time, familiar material and a clear goal, people across the average range reach the same answers.

How to get the most from your strengths

The most useful thing to do with a 105 is not to chase a higher number but to work with how you think best. A few habits help at any score:

  • Lean on structure. Checklists, notes and routines free up working memory for the hard part of a problem.
  • Learn in the format that suits you. Some people learn fastest by doing, others by reading or by talking it through.
  • Give unfamiliar problems time. Speed is where average scores differ most, and most real decisions are not timed.

How many people have an IQ of 105 or higher?

On a bell curve with a mean of 100 and a standard deviation of 15, about 37% of people score 105 or higher. Applied to whole populations:

WherePopulationIQ 105+
UK68 million25 million
US335 million120 million
World8.1 billion3 billion

In a class of 30, you would expect about 11 people to score 105 or higher.

Exactly 105, counting anyone between 104.5 and 105.5, is about 1 in 40. In the US that is about 8.4 million people, and in the UK about 1.7 million 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 105?

An IQ of 105 or higher is 1.4 times rarer than 100 or higher, and 110 or higher is 1.5 times rarer again. At this point on the curve, each extra point makes a score about 7% rarer.

What your 105 could really be. Even a good supervised test has a margin of error of roughly 5 points either side. A true score anywhere from 100 to 110 would be consistent with a 105, which spans the 50th to the 74.8th percentile. Short online tests have wider margins.

Which scale was it on? Close to 100, it barely matters. Even on an SD 24 scale, a 105 converts to about 103 on the usual SD 15 scale, so you can compare it with this page almost directly.

Famous people with an estimated IQ near 105

Nobody famous has a verified IQ in most cases, and retrospective estimates are only made for a narrow group.

Our historical estimates start at 115, so nobody sits close to 105. That is not because famous people score higher. Estimates are only attempted for people with extraordinary records, which leaves ordinary scores unrepresented.

See all historical IQ estimates or all fictional character IQs.

Degrees, universities and jobs around 105

A few degree, university and job profiles on this site carry IQ benchmarks close to 105. Treat the education figures as rough estimates from admissions-test data rather than measured IQs.

College majors

Jobs

Benchmarks describe rough group averages. They are not requirements, and admissions, hiring and success all depend on far more than a test score.

105 compared with nearby scores

How 105 stacks up against the scores just around it and the round numbers people usually ask about. Each score links to its own page.

IQClassificationPercentileScore higher
IQ 100Average50th50%
IQ 104Average60.5th39%
IQ 105Average63.1st37%
IQ 106Average65.5th34%
IQ 110High Average74.8th25%
IQ 120Superior90.9th9.1%
IQ 130Gifted97.7th2.3%
IQ 140Gifted99.62nd0.38%
IQ 150Genius99.96th0.043%

What an IQ of 105 looks like on the SAT, ACT and other tests

People with an IQ of 105 typically score about 1060 on the SAT and about 19 on the ACT composite. Scores vary a lot from person to person, so the range shows where about four in five land.

TestTypical scoreLikely range
SAT1060850 to 1290
ACT1914 to 26
GRE302287 to 317
LSAT150139 to 162
Wonderlic2317 to 29
ASVAB6131 to 85

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 105

Is 105 a good IQ?

Yes. A 105 is a perfectly good score: about 63.1% of people score at or below it. Skilled trades and professional careers alike are done well by people in this range, and the gap to nearby scores is smaller than the margin of error.

What percentile is an IQ of 105?

On the standard scale, 105 lands at about the 63.1st percentile: only 37% of people match or beat it. Percentiles depend on the scale, so check that your score report uses a standard deviation of 15 before comparing it with this page.

Is 105 genius level?

No. 105 is an average score, and genius labels are usually reserved for scores above about 145 or for extraordinary work. That applies to very few people. Most of what people accomplish comes from skill, practice, interests and opportunity rather than a test score.

What does an IQ of 105 mean?

A 105 means your result on a timed reasoning test was 5 points above the average of 100, which this site labels Average. Most people score within 15 of 100. It reflects one test on one day, and it does not measure knowledge or character.

How rare is an IQ of 105?

About 1 in 3 people score 105 or higher. In the UK that is about 25 million people, in the US about 120 million and worldwide about 3 billion. About 1 in 40 score exactly 105. These are bell curve estimates, not census counts.

What is the mental age for an IQ of 105?

There is no real mental age for adults. The idea comes from early ratio tests for children: a 6-year-old with a ratio IQ of 105 would reason like a typical 6.3-year-old. Today's tests use deviation scores, which rank you against your own age group.

Next in IQ scores

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IQ 120 percentile

Superior range, top 10%

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Is your IQ above 105?

See where you land next to 105 with 25 visual reasoning questions.

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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