What Does an IQ of 164 Mean?

Quick answer: An IQ score of 164 is at the 99.99th percentile — higher than about 99.99% of the population. It is classified as “Exceptionally Gifted” on the standard scale (mean 100, SD 15), and roughly 1 person in 100,730 scores this high or higher.
99.99th
percentile
1 in 100,730
score this high
Exceptionally Gifted
classification
+4.27
standard deviations
IQ 164 on the bell curve — 99.99th percentile IQ 164 99.99th percentile 55 70 85 100 115 130 145
IQ 164 on the normal distribution (mean 100, SD 15). Shaded: the 99.99% of people scoring below.

Key facts about IQ 164

  • At 164, rarity math says about 1 person in 100,730 — but no test has enough top-end calibration data for that figure to be more than illustrative.
  • In a random group of 100 people, someone scoring 164 would typically out-score about 99 of them.

IQ 164 in depth

An IQ score of 164 is beyond the range that mainstream IQ tests are designed to measure. Standard modern instruments (Wechsler, Stanford-Binet) report ceilings around 160; values above that come from extended norms, childhood ratio scores, or extrapolation — methods that are not comparable to ordinary scores.

This matters for how to read famous numbers. Claims like "Einstein's IQ was 160" or "230" are estimates invented decades after the fact — Einstein never took a modern IQ test. Extremely high scores circulating online almost always trace to childhood ratio IQs (a different mathematical object that produces inflated-looking values), untimed hobbyist tests, or marketing.

Statistically, a score of 164 on today's SD-15 scale would imply a rarity so extreme that the world population is too small to norm it properly. No test has enough calibration data at this depth of the tail; treat any such number as a colorful flag meaning "extraordinarily high", not as a measurement.

What this range tends to look like day to day

  • At documented extreme levels: prodigious early mastery, often in mathematics or language
  • Formal education fits poorly without radical acceleration
  • Documented profoundly gifted individuals describe intense drive toward their domain
  • The measurement, not the mind, is the limiting factor at this altitude

If you saw 164 attached to a celebrity or an online test result, apply the standard test: which instrument, normed when, supervised by whom? For scores above 160 the answer is essentially always "none, recently invented, nobody" — the number is folklore. Genuinely documented extreme ability shows up as verifiable output (proofs, publications, prodigy-level performance), not as a big integer.

IQ 164 on other test scales

Different tests use different standard deviations, so the “same” performance produces different numbers. A 164 on an SD-15 test (Wechsler-style, and this site) corresponds to:

ScaleUsed byEquivalent score
SD 15Wechsler (WAIS/WISC), most modern tests, this site164
SD 16Older Stanford–Binet forms168
SD 24Cattell (used by some high-IQ societies)202
PercentileAll scales99.99th

Where 164 sits among all classifications

RangeClassificationShare of population
≤ 69 Extremely Low 2.1%
70–79 Borderline 6.5%
80–89 Low Average 15.6%
90–109 Average 49.5%
110–119 High Average 16.6%
120–129 Superior 7.2%
130–144 Very Superior (Gifted) 2.3%
145–159 Highly Gifted 0.1%
160+ Exceptionally Gifted ← IQ 164 <0.1%

How reliable is a score of 164?

No modern, properly normed, supervised IQ test reports scores at this level. This page exists because people search for these numbers — the responsible answer is to explain what they would and would not mean.

Compare any score

See how another score stacks up against IQ 164.

Would you score 164?

Find out in 25 minutes: 35 matrix puzzles, instant score and percentile. Free, no email.

Start the Free IQ Test

IQ 164 — common questions

Is an IQ of 164 good?

Yes. An IQ of 164 is beyond the range standard tests measure — it places you at the 99.99th percentile, above roughly 99.99% of people. It clears the conventional gifted threshold of 130.

What percentile is an IQ of 164?

On a standard scale with mean 100 and SD 15, an IQ of 164 is at the 99.99th percentile (z-score 4.27). That means about 99.99% of people score below it.

How rare is an IQ of 164?

About 1 person in 100,730 scores 164 or higher. At this extreme, rarity math is illustrative rather than precise — no test is calibrated this deep in the tail.

What jobs can someone with an IQ of 164 do?

Almost anything — occupational research finds wide IQ ranges inside every profession. This score is inside the range of the majority of the workforce, including many demanding occupations. A single IQ score is a weak career oracle; interests and accumulated skill dominate.

Can I raise an IQ of 164?

Measured scores move with test familiarity, sleep, stress and effort — often by 5–10 points — so a first online attempt frequently understates ability. Underlying fluid intelligence, however, is stable in adulthood: "brain training" apps have repeatedly failed to raise it. What reliably grows is domain skill and knowledge, which is what actually drives most real-world performance.