IQ Score Lookup
Is 121 a Good IQ Score?
121
Superior · higher than 91.9% of the population
70100160
A score of 121 falls in the Superior range, clearly above the population average of 100. It reflects strong performance across most reasoning categories tested, placing you ahead of roughly 91.9% of the general population on this scale.
The Statistics Behind This Number
This page uses the standard normal distribution model (mean 100, standard deviation 15) applied to a general population, the same convention used across most published cognitive assessments. It is a statistical model of population-level distribution, not a measurement of any specific individual or group. Your own result from our free IQ test is calculated the same way; see the full methodology for the formula.
Frequently Asked Questions
Is 121 a good IQ score?
A score of 121 falls in the Superior range on the standard scale (mean 100, standard deviation 15). This is above the population average.
What percentage of people score 121 or higher?
On the standard normal distribution model, approximately 8.1% of the population is estimated to score 121 or higher.
What percentage of people score below 121?
Approximately 91.9% of the population is estimated to score below 121 on this scale.
How is this percentage calculated?
Using the standard normal (bell curve) distribution with a mean of 100 and a standard deviation of 15, the convention used across most published cognitive assessments. See our methodology page for the full formula.