Age calculation

Definition and age groups

We can define the age of an individual as the time elapsed since his birth. During this time the natural process of growth, maturation and involution of various human qualities and abilities is accomplished. In this regard, the life cycle is divided into various age groups:

Newborn	up to 28 days of life
suckling	from 4 weeks per year of life
Early childhood:	from 1 to 24 months of life
Second childhood	from 2 to 6 years
Third childhood (childhood, school age)	from 6 years up to the beginning of puberty
Puberty and Adolescence	from the appearance of sexual characters up to 22 years
Pediatric age	from 0 to 14 years

Early adulthood	22-39 years
Second adult age	40-59 years
Third Age	60-75 years
Fourth age	75-90 years
Fifth age	> 90 years
NOTE: the temporal classification of the stages of the human life cycle may vary slightly depending on the sources consulted. The chronological age does not always coincide with the biological age; a forty-year-old sportsman, for example, can have a biological age of 30 years, vice versa, a thirty-year-old obese and sedentary can have a biological age of 40 years. In the same way a boy can present an anticipated or delayed puberty.

Age Calculation

Answer the question "What is your age?" it is rather simple, since it is understood that our interlocutor wants to know how old we are. But what if they asked us to express our age in months or worse in minutes? The following calculation module makes the necessary conversions, saving the visitor intrigued mental calculations. The only care is to enter the date of birth in the following format mm / dd / yy. For example, if we were born on January 20, 1980, we should enter 01/20/1980 as the date of birth.