Age calculation

Definition and Age Groups

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

Newborn up to 28 days of life Infant from 4 weeks to one 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 until the onset of puberty Puberty and Adolescence from the appearance of sexual characteristics up to 22 years c.a. Pediatric age from 0 to 14 years
Early adulthood 22-39 years Second adulthood 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 sportsman forty years old, for example, can have a "biological age of 30 years, vice versa, an obese and sedantary thirty years old can have a" biological age of 40 years. Similarly, a boy may have early or delayed puberty.

Age Calculation

Answer the question "What is your age?" it is quite 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 even worse in minutes? The following calculation module performs the necessary conversions, saving the visitor from intrigued mental calculations. The only precaution is to insert the date of birth in the following format mm / dd / yy. For example, if we were born on January 20, 1980 we should insert 01/20/1980 as the date of birth.

Date of birth month / day / year Age on date: month / day / year Age = years months = months = weeks = days = hours = minutes

Your birthday: January February March April May June July August September October November December 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31