IQ percentile calculator
Type an IQ score to see its percentile and how rare it is, or type a percentile to get the IQ.
Calculator
- Percentile
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- How rare
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- Range
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IQ scores and percentiles
With a standard deviation of 15. “How rare” is the share of people who score at least that high.
| IQ | Percentile | How rare |
|---|---|---|
| 70 | 2 | — |
| 80 | 9 | — |
| 85 | 16 | — |
| 90 | 25 | — |
| 100 | 50 | 1 in 2 |
| 110 | 75 | 1 in 4 |
| 115 | 84 | 1 in 6 |
| 120 | 91 | 1 in 11 |
| 125 | 95 | 1 in 21 |
| 130 | 98 | 1 in 44 |
| 135 | 99 | 1 in 102 |
| 140 | 99.6 | 1 in 261 |
| 145 | 99.9 | 1 in 741 |
| 150 | 100 | 1 in 2,330 |
| 160 | 100 | 1 in 31,560 |
What the scores mean
IQ scores are set so the average is 100 and two thirds of people land between 85 and 115.
| IQ | Range | Share of people |
|---|---|---|
| 130+ | Very high | 2% |
| 120–129 | High | 7% |
| 110–119 | Above average | 17% |
| 90–109 | Average | 49% |
| 80–89 | Below average | 16% |
| 70–79 | Low | 6% |
| ≤ 69 | Very low | 2% |
Shares follow the normal curve with a standard deviation of 15, the convention most modern tests use.
More tests
- Free IQ testThe full test: patterns, sequences and spatial puzzles.
- Quick IQ testA 10-minute estimate when you are short on time.
- Pattern testFigure matrices: find the rule, fill the gap.
- Number sequence testNumbers and letters: what comes next?
- Spatial reasoning testTurn shapes in your head and spot the mirror image.
Questions
What percentile is an IQ of 130?
About the 98th: higher than 98% of people, or roughly 1 in 44.
Why do some tests give higher numbers?
Some tests use a standard deviation of 16 or 24, which stretches the scale. A 148 on a scale of 24 is about the same as 130 on a scale of 15.
What is a percentile?
The share of people who score lower than you. The 50th percentile is exactly average.