BrainRank IQテストIQテストBrainRankSign in

How rare is an IQ of 87?

An IQ of 87 is at the Below average level (Bottom ~25%). IQ follows a normal distribution with a mean of 100 and a standard deviation of 15, and an IQ of 87 sits as follows.

Deviation score

41.3

Top

80.69%

Rarity

1 in 1

z-score

-0.87

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

557085100115130145

Characteristics and tendencies of an IQ of 87

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

  • This is the Below average level. IQ measures only a small part of thinking, and strengths and weaknesses vary greatly between individuals.
  • Even on problem formats you find difficult, your score can change with practice and learning new strategies.

Relationship to Mensa

Mensa's admission criterion is "the top 2% (roughly IQ 130 or above)." An IQ of 87 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.

What's your IQ?

A free 20-question test takes about 10 minutes and gives you your estimated IQ, deviation score, and national ranking.

Measure your IQ for free →

Frequently asked questions

What percentile is an IQ of 87?
An IQ of 87 corresponds to roughly the top 80.69%, or about 1 in 1 people.
Is an IQ of 87 high? Is it impressive?
It is at the Below average level (Bottom ~25%), placing it in roughly the top 80.69%. 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 87?
Mensa's admission criterion is "the top 2% (roughly IQ 130 or above)." An IQ of 87 does not reach the threshold (IQ 130).
What is the deviation score for an IQ of 87?
Converting IQ (mean 100, SD 15) to a deviation score gives about 41.3.

Related IQ scores

Recommended reading