The advantage of the age calculator is that it can help people to find out people's exact age.
With this calculator, you can find out how old you are and how much of your life you have lived so far.
You could also enter a date of an event and calculate how long ago it occurred or how many years ago it was.
An age calculator tells you how old a person, a structure, an event, etc is based on the date they input to the interface.
This free online tool above allows you to input a date and then calculates what year that corresponds with and displays how old that person/structure/event/etc would be in Earth years as well as their exact age expressed in days, months, and years.