Free Age Calculator
Your exact age — plus total days alive and your next birthday countdown.
How to use the Age Calculator
- Enter your date of birth.
- Leave Age at date as today — or pick any date, past or future.
- Click Calculate Age for the full breakdown.
Good to know
- Dates are calculated on your device; nothing is sent anywhere.
- Age is computed by calendar dates, ignoring time of day and time zones.
Frequently asked questions
How many days old am I?
The Total days line counts every day from your birth date to the chosen date — try it with today's date.
Can I calculate the age of a document, pet, or business?
Yes — any start date works as the “date of birth.”