You can know your age in years, months, weeks, days, hours, minutes and seconds. You can also know the remaining time until the next birthday.
You can create multiple profiles (tabs), so you can also calculate the age of your children, relatives, friends... To change the name of a tab just double click in the name.
All profiles you create are autosaved, so you don't need to enter the data again.
You can also use the software to calculate how much time passed since a special event for you, like a wedding, when you met your significant other and so on.
You can use Age Calculator to track the age of your favorite celebrities and famous people. Just enter their birthdays.
Age Calculator is totally free. You don't have to pay anything to use it.