IQ Percentile Calculator & Chart: Check Your Rank (Score 100-170+)

IQ Percentile Calculator: Check Your Global Rank

Enter your score below to see your global rank. Our tool uses the standard IQ distribution curve (Mean 100, SD 15) to calculate your exact percentile. If you haven't taken a test yet, try our Quick Free IQ Test or the Official Assessment.

Enter Your IQ Score

Wechsler Scale (Standard Deviation 15)

IQ Percentile Chart (Reference Table)

Use this cheat sheet to quickly find the percentile rank for common IQ scores. This table is based on the Wechsler IQ Test standard deviation of 15.

IQ Score Percentile Rank Classification Rarity (1 in X)
10050.00%Average1 in 2
11074.75%High Average1 in 4
11584.13%High Average1 in 6
12090.88%Superior1 in 11
12292.92%Superior1 in 14
12595.22%Superior1 in 21
12896.93%Superior1 in 33
13097.72%Very Superior (Mensa)1 in 44
13198.08%Very Superior1 in 52
13298.34%Very Superior1 in 60
13899.42%Very Superior1 in 173
14099.62%Genius / High IQ1 in 261
14599.87%Genius1 in 741
16099.997%Exception Genius1 in 31,500
17099.9998%Profound Genius1 in 650,000
IQ Rarity Pyramid showing the top 2 percent and Mensa cutoff

Understanding the IQ Distribution Curve

The IQ distribution curve (or bell curve) visualizes how human intelligence is spread across the population. The peak of the chart represents the average adult IQ of 100.

Standard Deviation & Confidence Intervals

A common question is about the range of scores. In psychometrics, the "Standard Error of Measurement" means a score is rarely exact. For example, if you ask, "So the standard deviation of a 118 IQ is 103-133?", you are referring to the confidence interval. With a Standard Deviation (SD) of 15, a score of 118 typically implies that your "true" score lies somewhere between 103 and 133 with 95% certainty. See more on the IQ Scale.

Standard Normal Distribution IQ Bell Curve showing standard deviation of 15

IQ vs. Profession: Statistical Averages

Data suggests correlations between career complexity and average IQ. The chart below shows the typical range for various professions, such as doctors and engineers.

Fluid vs. Crystallized Intelligence

When analyzing your percentile, it's important to remember that general intelligence is composed of two factors: Fluid (solving new problems) and Crystallized (learned knowledge). You can often improve crystallized intelligence through education, or try specific N-back training for fluid intelligence.

Fluid vs Crystallized Intelligence diagram logic processing vs stored knowledge

Frequently Asked Questions

What percentile is 132 IQ?

An IQ of 132 falls in the 98.34th percentile. This is a significant milestone because it clears the 98th percentile requirement for admission into Mensa.

What is the percentage of people with IQ above 170?

Scores above 170 are incredibly rare. Less than 0.0002% of the population scores this high. In a random sample, you would need to test roughly 650,000 people to find one person with an IQ of 170 (SD 15).

What does "111 IQ score percentile rank" mean?

If you have an IQ of 111, your percentile rank is approximately 76.7%. This places you in the "High Average" category, scoring better than three-quarters of the population.

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