Calculators · SIMPLY USEFUL
Age Calculator
Your story, in years and days.
Every day is part of your story. Enter your birth date to see yours.
Your birth date is saved only in this browser. You can clear it at any time.
A little less friction in your day.
Calculate age in calendar years, months and days, then see the total days and the next birthday.
How to use age calculator
- Enter the birth date.
- Choose today or another calculation date.
- Read the calendar age and time until the next birthday.
Good to know
How are February 29 birthdays treated?
In non-leap years, the next-birthday calculation uses February 28. This is a display convention, not a legal definition.
Are total hours exact?
Hours equal calendar days multiplied by 24. Without birth time and time zone, exact elapsed hours are not known.
Is my birth date uploaded?
No. The calculation runs locally and the date stays in this browser. Use Clear birth date to remove it.