Day Age Calculator
Find out how old you are in days today, or on any other day, past or future. Your day age is the number of days since you were born.
More Calcs: When Am I Days Old, Convert Days to Age
Note: When you run this calculator the birth date you enter is saved in a temporary (session) cookie so you do not have re-enter if running the calculator multiple times while visiting our site. The cookie is automatically deleted when your browser closes.
Entry Fields
In the Birth Date field, enter the date of birth of the person for whom you are calculating; If calculating for yourself, enter your birth date.
In the Day Age On Date field, specify the date for day aging. By default, today's date fills in. You can calculate day age for a future or past date.
Optionally, if calculating for someone other than youself, enter the person's name.