About the Age Calculator
Find your exact age — or the age of anything — on any date. See years, months and days, the totals in weeks, days and hours, the weekday you were born and how long until your next birthday.
How to use it
- Enter the date of birth.
- Optionally change the “age on” date.
- Read your exact age and birthday countdown.
Formula & method
Whole months counted from birth date, remaining days counted on the calendarFrequently asked questions
How is age calculated for people born on 29 February?
In non-leap years, this calculator treats the birthday as 28 February when counting completed months and years.
Results are estimates for general information only and are not financial, tax, legal or medical advice. Please confirm important decisions with a qualified professional.