Mental Age Calculator: How to Turn an IQ Score Into a Mental Age
A mental age calculator multiplies IQ by age and divides by 100. Here is how to use it correctly, a lookup table by age, and why results fail for adults.
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IQ of 70: What Is the Mental Age? (Child and Adult Math)
Under the ratio formula, an IQ of 70 means a mental age of 70% of real age: about 7 for a 10-year-old and 11 to 12.5 for adults. Here is the math, a table for nearby scores, and what 70 means on modern tests.
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Mental Age vs Chronological Age: What the Gap Really Means
Chronological age is the time since you were born; mental age is the age group whose typical performance matches yours. Here is how the two compare, how they formed the first IQ scores, and what an online result really means.
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Mental Age in Psychology: Definition, Formula and Why It Changed
Mental age is a score from early intelligence tests that names the age group whose average performance a person matches. Here is the definition, the original IQ formula, and why psychologists replaced it.
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