The mental age is a measure, where the person's ability is compared to the total number of times that is taken for the person to reach the level. For example, if your mental age is 15 and your chronological age is 27, then you are mentally similar to a 15-year-old child. The mental age formula finds the IQ score from different scores taken by the person. The IQ score formula can be calculated by multiplying the IQ score with chronological age and the resultant is divided by 100.
The IQ is the first intelligence test used in the psychology field and test your intelligence using the mental age formula. Find your mental age using the IQ score formula.