IQ Score Lookup
Is 105 a Good IQ Score?
105
Average · higher than 63.1% of the population
70100160
A score of 105 falls within the Average range, which spans 90 to 109 and covers roughly half the general population. This is the single most common outcome on the standard scale; scores anywhere in this band reflect typical reasoning performance relative to the broader population.
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 105 a good IQ score?
A score of 105 falls in the Average range on the standard scale (mean 100, standard deviation 15). This is within the population average range.
What percentage of people score 105 or higher?
On the standard normal distribution model, approximately 36.9% of the population is estimated to score 105 or higher.
What percentage of people score below 105?
Approximately 63.1% of the population is estimated to score below 105 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.