Is an IQ of 128 Good? What It Means & Where You Stand
Classification
Superior
Percentile
97th
Rarity
1 in 33
High
What Does an IQ of 128 Mean?
An IQ of 128 is near the top of the superior range, just 2 points below the gifted threshold of 130. At the 97th percentile, only about 3% of people score higher. You are approaching the boundary where standard cognitive advantages shade into giftedness. At this level, abstract reasoning, learning speed, and intellectual depth are notably above the general population. Given the standard error of IQ tests, a 128 could easily be a 130 or higher on a different testing day.
An IQ of 128 places you at the 97th percentile, which means you scored higher than approximately 97% of the general population on a standardized intelligence test. This score falls into the Superior range on the IQ scale. With a rarity of 1 in 33, this score is uncommon and indicates strong cognitive abilities.
To understand how IQ scores are calculated and what they measure, see our complete guide on what IQ is and how it works. For a full breakdown of all score ranges and their meanings, visit our IQ score ranges page.
Career Context for an IQ of 128
A 128 IQ supports the most intellectually demanding careers without reservation. Research, advanced law, specialized medicine, and cutting-edge technology are all excellent fits. At this level, the question is less 'what can I do?' and more 'what do I find fulfilling?'
How Does an IQ of 128 Compare?
Here's how a score of 128 compares to nearby IQ scores:
| Score | Classification | Percentile |
|---|---|---|
| IQ 113 | High Average | 81st |
| IQ 114 | High Average | 82nd |
| IQ 115 | High Average | 84th |
| IQ 116 | High Average | 86th |
| IQ 117 | High Average | 87th |
Frequently Asked Questions
Is 128 a good IQ score?
A 128 is an outstanding score at the 97th percentile. Only about 3% of people score this high. You are at the boundary between superior and gifted classification.
Is 128 IQ close to gifted?
Very close — gifted begins at 130. The 2-point gap is within the standard error of IQ tests, meaning you could test as gifted on a different day. Functionally, a 128 and a 130 are virtually identical.
Can I join Mensa with a 128 IQ?
Mensa requires the 98th percentile (approximately 130). A 128 is at the 97th percentile — very close but just below the cutoff. However, given test variability, retesting might produce a qualifying score.
Explore Other IQ Scores
Take our free IQ test to find out where you stand, or learn more about what IQ really measures.