# What Percentage Has an IQ of 110? Top X% and What 'Slightly Above Average' Means

Source: https://iqcat.vercel.app/en/blog/iq-110-percentage
Published: 2026-07-20
Publisher: NekoIQ (https://iqcat.vercel.app)
Tags: IQ基礎, 割合

> An IQ of 110 is roughly the top 25% — about 1 in 4 people. We explain what 'slightly above average' means in real life, along with the distribution data behind it.

An IQ of 110 can feel like an awkward middle ground — above average, but hardly 'genius.' Where does it actually place you?

## An IQ of 110 is roughly the top 25%

On a normal distribution with mean 100 and SD 15, an IQ of 110 sits +0.67 standard deviations above the mean — roughly the top 25%, or about 1 in 4 people. Converted to a Japanese-style deviation score, that's about 56.7. See [converting between IQ and deviation scores](https://iqcat.vercel.app/en/blog/iq-deviation-conversion) for the mechanics.

## '1 in 4' is a bigger gap than it sounds

In a class of 40, that's around 10th place. People at this level tend to pick up abstract material and adapt to new environments a bit faster — though not so much that the difference stands out in everyday conversation or work. IQ gaps typically become noticeable from [IQ 120](https://iqcat.vercel.app/en/iq/120) to [IQ 130](https://iqcat.vercel.app/en/iq/130) and above.

## Compare with nearby scores

Lined up against [IQ 100](https://iqcat.vercel.app/en/iq/100) (exactly average, top 50%), [IQ 105](https://iqcat.vercel.app/en/iq/105) (top 37%), and [IQ 115](https://iqcat.vercel.app/en/iq/115) (top 16%), an IQ of 110 is clearly above average without being rare. Details for each score are on the [IQ reference pages](https://iqcat.vercel.app/en/iq/110).

## Measure your own position

Many casual online quizzes skew high, so it's best to use a test that [discloses its scoring method](https://iqcat.vercel.app/en/methodology). [NekoIQ's free IQ test](https://iqcat.vercel.app/en/start) takes 20 questions in about 10 minutes and returns an IRT-scored estimated IQ and top percentile.

## Disclaimer

NekoIQ provides estimates for entertainment and self-understanding. It is not a medical, clinical, or official psychological assessment. Percentages are derived from a normal distribution with mean 100 and SD 15.