Age on a Date Calculator
Find out how old you were on a past date, or how old you'll be on a future one.
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Months Old--
Total Days--
How it works
Enter a date of birth and any target date, past or future, and the calculator shows exactly how old that person was, or will be, on that day. It's useful for planning milestone birthdays, checking eligibility dates for retirement or benefits, or historical and genealogy research.
Frequently asked questions
Can I calculate my age on a past date?
Yes, enter any date, past or future, and the calculator works out the exact age on that day.
What is this useful for?
Planning milestone birthdays, checking retirement or benefit eligibility dates, and historical or genealogy research.