Everyday Life
Age calculator
"How old are you" has a simple answer until a form asks for it exactly. Enter a date of birth and this calculator returns the precise age in years, months, and days as of today (or any date you choose), plus the total days lived, a countdown to the next birthday, and the weekday you were born on. Calendar-accurate, including leap years — useful for applications, anniversaries, milestone planning, and settling birthday debates.
Live calculator
Enter your details
Age Calculator
Find an exact age in years, months, and days — plus the next birthday.
Inputs used
Results
Additional notes
Your estimate
Results
Partner pick
Birthday calendarKeep birthdays and family milestones visible through the year.Paid link · Check current price ↗As an Amazon Associate I earn from qualifying purchases.The math, plainly
How it works
- 01
Years, months, and days are counted calendar-accurately, borrowing days from the previous month when needed.
- 02
Total days is the exact day count between the two dates.
- 03
The next birthday is the upcoming anniversary of the birth date; if today is the birthday, it counts to next year.
Try a real scenario
Born May 14, 1990
InputsAs of January 31, 2026
Result35 years, 8 months, 17 days — next birthday in 103 days.
More from Amazon
More options for this calculator
Perpetual calendar (paid link)
Track birthdays and recurring dates without replacing the calendar each year.
Family wall calendar (paid link)
Keep birthdays and family events visible at home.
Birthday reminder book (paid link)
Write down birthdays and milestone dates in one place.
As an Amazon Associate I earn from qualifying purchases.