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How rare is an IQ of 98?

An IQ of 98 is at the Average level (Around the median (~50%)). IQ follows a normal distribution with a mean of 100 and a standard deviation of 15, and an IQ of 98 sits as follows.

Deviation score

48.7

Top

55.3%

Rarity

1 in 2

z-score

-0.13

Position in the IQ distribution (mean 100, SD 15)

557085100115130145

Characteristics and tendencies of an IQ of 98

The following are general tendencies seen at this level; individual differences apply. IQ measures one aspect of thinking, such as fluid reasoning.

  • The most common, average level (about 50% of people fall in the IQ 90–109 range).
  • A tendency to show standard performance in everyday reasoning and learning.
  • IQ has many aspects that can be improved (knowledge, skills, and thinking frameworks); it is only one indicator of where you stand now.

Relationship to Mensa

Mensa's admission criterion is "the top 2% (roughly IQ 130 or above)." An IQ of 98 does not reach this criterion. Actual membership requires taking an approved supervised test.

Note: Most celebrity IQ figures seen online are estimates from unreliable sources. This page does not publish individual IQ values that cannot be verified.

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Frequently asked questions

What percentile is an IQ of 98?
An IQ of 98 corresponds to roughly the top 55.3%, or about 1 in 2 people.
Is an IQ of 98 high? Is it impressive?
It is at the Average level (Around the median (~50%)), placing it in roughly the top 55.3%. That said, IQ measures only a small part of thinking and does not determine a person's worth or success.
Can you join Mensa with an IQ of 98?
Mensa's admission criterion is "the top 2% (roughly IQ 130 or above)." An IQ of 98 does not reach the threshold (IQ 130).
What is the deviation score for an IQ of 98?
Converting IQ (mean 100, SD 15) to a deviation score gives about 48.7.

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