IQ score chart
IQ scores follow a bell curve: most people are near 100, and each step of 15 points away from it is rarer.
How many people score in each range
| Score | Share of people |
|---|---|
| Below 70 | 2.3% |
| 70–84 | 13.6% |
| 85–99 | 34.1% |
| 100–114 | 34.1% |
| 115–129 | 13.6% |
| 130–144 | 2.1% |
| 145 and up | 0.1% |
Percentile for each score
The percentile is the share of people who score lower than you.
| Score | Percentile | Rarity |
|---|---|---|
| 70 | 2 | - |
| 85 | 16 | - |
| 100 | 50 | - |
| 110 | 75 | about 1 in 4 |
| 115 | 84 | about 1 in 6 |
| 120 | 91 | about 1 in 11 |
| 125 | 95 | about 1 in 21 |
| 130 | 98 | about 1 in 44 |
| 135 | 99 | about 1 in 102 |
| 140 | 99.6 | about 1 in 261 |
| 145 | 99.9 | about 1 in 741 |
Figures come from the normal distribution that IQ tests are scaled to (mean 100, standard deviation 15). Real tests are less precise at the extremes, so treat very high and very low numbers as approximate.