Brain & IQ

IQ Score Chart: Every Range and Percentile in One Place

By Brain & IQ editorial team · Updated

Layered translucent indigo and violet bands forming a chart landscape with an amber peak

When people search for an IQ score chart, they want a quick answer to a plain question: I got this number, where does that put me? The answer is a table, and the table is simple once you know that IQ is built on a bell curve with an average of 100 and a standard deviation of 15. This page gives you the full chart, the percentile for each score, the labels used by test publishers and a few notes on how not to misuse it.

The full chart

Percentiles show the share of the reference group scoring below you. A 115 at the 84th percentile means you scored higher than about 84 of every hundred in the reference group.

IQ scorePercentileLabel often usedShare of people at or above
145 and above99.9thExtremely highAbout 1 in 740
14099.6thExtremely highAbout 1 in 260
13599thVery highAbout 1 in 100
13098thVery highAbout 1 in 44
12595thHighAbout 1 in 20
12091stHighAbout 1 in 11
11584thAbove averageAbout 1 in 6
11075thAbove averageAbout 1 in 4
10563rdAverageAbout 1 in 3
10050thAverage1 in 2
9537thAverageAbout 2 in 3
9025thAverageAbout 3 in 4
8516thBelow averageAbout 5 in 6
809thBelow averageAbout 9 in 10
755thLowAbout 19 in 20
702ndVery lowAbout 49 in 50

Labels such as "high" and "very high" vary between publishers, so treat them as friendly signposts. The percentiles are the reliable part.

How the bell curve produces these numbers

Test makers calibrate scores so that the middle of the group is 100 and about two thirds of people fall within 15 points either way. From there:

The curve is symmetric, so the same logic applies below 100. The reason there are fewer people at each extreme is mathematical, not mysterious: a normal curve thins out quickly.

A note on older scales: some historical tests used a 24-point standard deviation, which stretches scores farther from the middle. A 150 on one of those is not the same as a 150 on a modern test. If you are reading old material or a source that does not state its scale, assume the numbers are not comparable.

Reading the chart for your own score

A few examples show how to use it.

You scored 104. That is the 61st percentile or so, above average by a hair and within the normal range. A different sitting could easily bring 98 or 110.

You scored 118. You are at about the 88th percentile, in the top eighth. For an online test, the honest reading is "probably between 108 and 128 on a supervised test".

You scored 132. About the 98th percentile. Impressive, and also the point where a margin of error matters most, since the thresholds for societies such as Mensa are a supervised test at the 98th percentile.

You scored 86. The 18th percentile. If this surprised you, consider the conditions: tiredness, distractions and unfamiliarity with the format all lower scores. Practice with matrices and retest.

What the chart does not tell you

From a number to a plan

A chart tells you where you are. The next useful question is what to do about it, and the answer depends on your breakdown, not on the headline number. Someone with a strong matrix section and a weak memory section has a very different next step than someone with the reverse.

Cognivo IQ Test is a 40-question test, 25 of them Raven-style matrices with six options, plus number series, logic items and three memory tasks, and the result comes with a certificate and a breakdown of your answers. The 7-day trial costs $1.00, and then the plan renews every 28 days until you cancel; the checkout shows the renewal amount before you pay. Once you have a score, find it on the chart above, then use the breakdown to choose what to practice. The guides on raising your IQ and what counts as a good score are good next stops.

Common questions about thresholds

What is the cutoff for gifted? Many programs use 130, the 98th percentile, but they usually require a supervised test.

Is 140 genius? "Genius" is not a scientific category. Scores of 140 and above are extremely rare, and what people call genius also involves creativity, drive and opportunity.

Why do some charts stop at 160? Because few people score there, and tests do not have enough hard items to separate scores accurately at the top. Claims of 180 or 200 are almost always unreliable.

Does the chart change with age? The scale does not, but your score is compared with people of your age on professional tests, so a given performance can map to a slightly different number at different ages.

Print this table or bookmark it, take your test in good conditions, and read your score as a position on a smooth curve rather than a verdict. The curve is generous in the middle, and most of the interesting things you can do with a mind do not depend on the last few points.

Frequently asked questions

What IQ scale does this chart use?

The common scale with an average of 100 and a standard deviation of 15, used by modern Wechsler and Stanford-Binet tests.

What is genius level IQ?

There is no official genius line. Scores of 130 and above are the top two percent and 140 and above roughly the top half of one percent.

Are percentiles exact?

They are good approximations from the normal curve. Real test norms vary a little from test to test.

Does the chart apply to children?

The scale is the same, but a child's score is compared with children of the same age, so it should be read with a specialist.