IQ 123 — How Rare It Is, What It Means & Famous People With This Score

Updated 2026-09-26 · Based on historical estimates and psychometric research

An IQ of 123 is higher than 93.7% of people. It sits 1.53 standard deviations above the average and is classed as superior.

Percentile93.7th
How rarehigher than 93.7% of people
People alive with this score or higherabout 513 million of 8.2 billion
Standard deviations above the average of 100+1.53
Classificationsuperior
Mensa (top 2%, 130 and above)just below

Is 123 a good IQ?

Yes. An IQ of 123 is higher than 93.7% of people. The usual gifted line, and the Mensa line, is 130.

How many people have an IQ of 123 or higher?

About 513 million of the world’s 8.2 billion people, on the normal curve (average 100, standard deviation 15) used by modern tests.

Take the free IQ test → instant score, no sign-up

THE FREE TEST
How high is yours?

Twenty questions, eight minutes on the clock, and a percentile measured against everyone who has taken it. No sign-up.

Take the IQ test →
123
Superior
Top 6.3% · about 1 in 16

What Does an IQ of 123 Mean?

An IQ of 123 is classified as "Superior" and places you well above the general population in cognitive ability. About 6.3% of people score at or above this level.

Individuals with this IQ typically perform well in academic and professional settings, particularly in fields requiring analytical thinking, complex problem-solving, and learning agility.

Classification
Superior
Percentile
93.7%
Std. Deviations
+1.5σ
Rarity
~1 in 15

Where IQ 123 Falls on the Bell Curve

IQ 123 7085100115130145160175190

The highlighted area shows the percentage of the population scoring at or above IQ 123. The dashed line marks the exact position of this score on the normal distribution.

Famous People With an IQ of 123

There is 1 genius in our database with an estimated IQ of 123:

Walt Disney
Chicago · 1901–1966

Explore Other IQ Scores

IQ 100 IQ 105 IQ 110 IQ 115 IQ 120 IQ 125 (1) IQ 130 (1) IQ 135 IQ 140 (14) IQ 145 (29) IQ 146 (1) IQ 148 (2) IQ 150 (27) IQ 151 (1)

About IQ Scores: IQ (Intelligence Quotient) scores follow a normal distribution with a mean of 100 and a standard deviation of 15. Historical IQ estimates for famous individuals are approximations based on their demonstrated achievements, not direct test results. These estimates should be considered illustrative rather than definitive.

More IQ scores explained: IQ 117 · IQ 121 · IQ 122 · IQ 126 · IQ 127 · IQ 128 · IQ 129 · IQ 131 · IQ rarity chart · All IQ guides
01 · VS

Trending Comparisons

02 · TOP 100

Top IQ Rankings

03 · PRODIGIES

Child prodigies

Child prodigies →
04 · WORLD

Explore geniuses by country

Play & come back tomorrow

Daily Genius Challenge · Guess the genius
Scottish physicist who unified electricity, magnetism and light into one set of equations.
Tap your answer ↓
Which Genius Are You? Free IQ Test