Real World IQ'">
Whether you just received an IQ score and want to know what it means, or you're researching intelligence testing, this chart breaks down every IQ range with its percentile ranking, classification, and real-world context.
This guide uses the Wechsler Adult Intelligence Scale (WAIS) classification system — the most widely used IQ scale worldwide — alongside percentile data from the standard normal distribution (mean = 100, SD = 15).
Complete IQ Score Chart
| IQ Range | Classification | Percentile | Rarity |
|---|---|---|---|
| 145+ | Exceptionally Gifted | 99.87th+ | 1 in 741 |
| 140–144 | Profoundly Gifted | 99.6th | 1 in 261 |
| 130–139 | Very Superior | 98th–99.5th | 1 in 44 |
| 120–129 | Superior | 91st–97th | 1 in 11 |
| 110–119 | High Average | 75th–90th | 1 in 4 |
| 90–109 | Average | 25th–74th | 1 in 2 |
| 80–89 | Low Average | 9th–24th | 1 in 4 |
| 70–79 | Borderline | 2nd–8th | 1 in 11 |
| Below 70 | Extremely Low | Below 2nd | 1 in 44 |
What Each IQ Range Means in Practice
145+ — Exceptionally Gifted
Fewer than 1 in 741 people score here. This is the realm of research scientists, theoretical physicists, and world-class strategists. People in this range often think so differently from the norm that they may struggle with conventional education and social settings — not because of deficiency, but because standard environments aren't designed for how their minds work.
130–144 — Very Superior to Profoundly Gifted
The top 2%. This is typically the threshold for Mensa membership (132+) and gifted programs. People scoring here tend to excel in complex problem-solving, abstract reasoning, and learning new concepts rapidly. Many surgeons (avg IQ ~134), engineers, and senior executives score in this range.
120–129 — Superior
Top 9% of the population. This is often considered the "sweet spot" — high enough to excel in demanding professions (law, medicine, management) while still relating well to the general population. Most graduate-level professionals score in this range.
110–119 — High Average
Top 25%. Many successful professionals, skilled trades workers, and college graduates score here. This range often represents strong practical intelligence — people who may not test at the top but consistently perform well in real-world applications.
90–109 — Average
This is where approximately 50% of the population falls. An IQ of 100 is, by definition, the median score. There's nothing "mediocre" about average — this range includes competent professionals across every field. The difference between a 92 and a 108 is meaningful but often masked by effort, education, and experience.
80–89 — Low Average
About 16% of people score in this range. Academic tasks may require more effort, but many people here build successful careers in hands-on fields, skilled trades, and service industries where practical intelligence matters more than abstract reasoning.
Below 80 — Borderline to Extremely Low
About 9% of the population. Individuals scoring here may benefit from additional support in academic and professional settings. It's important to note that IQ measures a specific set of cognitive abilities — it doesn't measure creativity, emotional intelligence, determination, or social skills.
IQ Percentile Breakdown
Your IQ percentile tells you what percentage of the population you scored higher than. Here's a detailed breakdown:
| IQ Score | Percentile | You scored higher than... |
|---|---|---|
| 85 | 16th | 16% of people |
| 90 | 25th | 25% of people |
| 95 | 37th | 37% of people |
| 100 | 50th | 50% of people (median) |
| 105 | 63rd | 63% of people |
| 110 | 75th | 75% of people |
| 115 | 84th | 84% of people |
| 120 | 91st | 91% of people |
| 125 | 95th | 95% of people |
| 130 | 98th | 98% of people |
| 135 | 99th | 99% of people |
| 140 | 99.6th | 99.6% of people |
| 145 | 99.87th | 99.87% of people |
| 150 | 99.96th | 99.96% of people |
Wechsler vs. Stanford-Binet Classification
The two most widely used IQ scales classify scores slightly differently:
| IQ Range | Wechsler (WAIS) | Stanford-Binet |
|---|---|---|
| 140+ | Very Superior | Very Gifted or Highly Advanced |
| 130–139 | Very Superior | Gifted or Very Advanced |
| 120–129 | Superior | Superior |
| 110–119 | High Average | High Average |
| 90–109 | Average | Average |
| 80–89 | Low Average | Low Average |
| 70–79 | Borderline | Borderline Impaired |
| Below 70 | Extremely Low | Impaired or Delayed |
Why Free IQ Tests Give Inflated Scores
If you took a free online IQ test and scored 130+, your real score is likely 10-15 points lower. Here's why:
- No norming sample: Real IQ tests are calibrated against thousands of test-takers. Free tests use arbitrary scoring.
- Flattery drives sharing: A test that tells you you're a genius gets shared on social media. A test that tells you you're average doesn't.
- No time pressure: Processing speed is a core component of intelligence. Without a timer, you're not measuring the same thing.
- Narrow question types: Real IQ tests measure 4-6 cognitive domains. Free tests often test just one (usually pattern recognition).
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