Age Calculator
Find your exact age in years, months and days, plus total days lived and your next birthday countdown.
Assumptions used in this calculation
- Calendar: Uses the Gregorian calendar and the user's local time zone for "today".
About this calculator
Enter a date of birth and an optional comparison date to get an exact age breakdown: years, months and days, total months, total weeks, total days, the day of the week you were born on, and a countdown to your next birthday.
Worked example
Age of someone born 15 Aug 1990, measured today
Result: 35 years, 10 months, 29 days (as of 2026-07-14)
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