IQ 85: What the Score Means

On the Wechsler scale, an IQ score of 85 is one standard deviation below the mean. It marks the lower edge of the middle range, which runs from 85 to 115.

IQ 85 in numbers

Percentileof people score at or below	15.9
Rarityat or below	1 in 6.3
Commonly used band80 to 89	Low Average

Band labels are the commonly used WISC-V ones, as listed by Smart Kids with Learning Disabilities: Understanding IQ Test Scores. Labels are conventions in common use; each test publisher words its own.

Where it sits on the curve

Shaded: the people who score at or below it (15.9%).

The same position on other scales

Same percentile on every row; the number changes because the scales use different standard deviations.

Scale	Score	Percentile
SD 15	85	15.9
SD 16	84	15.9
SD 24	76	15.9

What one standard deviation below the mean means

One standard deviation below the mean places IQ 85 fifteen points below the center of the Wechsler scale. This is a relative position in a score distribution, not a description of everything a person can do.

At IQ 85, 15.9 percent of scores are at or below the score, and 84.1 percent are above it. The IQ percentile calculator can compare other scores on this scale.

Where IQ 85 sits in the middle range

IQ 85 is the lower edge of the middle range, which runs from 85 to 115 and includes 68.3 percent of scores. Its position is also the boundary between that range and the Low Average band.

The Low Average band spans 80 to 89. This label gives a category for a score, while the score itself shows a position in the broader distribution.

How the score compares across IQ scales

The same relative position can have a different score when a test uses a different standard deviation. The equivalent score is 84 with SD 16 and 76 with SD 24.

These are comparisons of positions relative to the mean, not claims that separate tests produce interchangeable results. The IQ scale and IQ standard deviation guides explain those terms.

Questions

What percentile is an IQ of 85?

It is percentile 15.9: 15.9 percent of scores are at or below it, and 84.1 percent are above it. This percentile describes a score's rank in the reference distribution, not a person's overall abilities.

Is IQ 85 Low Average?

Yes. IQ 85 falls within the Low Average band, which spans 80 to 89. Band names can differ among scoring systems, so the label should be read in the context of the test that reported the score.

Does IQ 85 mean the same thing on every test?

No. Different scales can assign different numbers to the same position relative to the mean. Check which scale was used for the reported score before comparing it with another test result.