Age Calculator
Work out exactly how old you are — or how old someone else is — on any date, past or future. See years, months and days, total time lived, star sign, generation, and a timeline of upcoming milestones.
For general use. This age calculator is for general use — verify important dates independently. Star sign, Chinese zodiac and generation labels are for entertainment and general reference only.
Enter a date of birth
Your exact age, total time lived and next birthday appear here once you pick a date.
How your age is calculated
Your age in years, months and days is worked out from the calendar — not just a simple day count — so it matches how you'd say your age out loud (for example, "36 years, 0 months and 24 days"). We also total up the exact number of days, weeks and months you've been alive, and work out the day of the week you were born on. If your birthday is on 29 February, your "next birthday" falls back to 28 February in years that aren't leap years.