Common uses for an age calculator
- Finding out your exact age in years, months, and days
- Calculating someone else's age from their birth date
- Discovering how many days you've been alive
- Checking age for eligibility or requirements
How the calculation works
The age calculator takes your birth date and calculates your age relative to today's date in your local timezone. It automatically accounts for leap years and shows your age as a whole number of years, the full breakdown in years/months/days, and the total number of days you've lived.
Frequently asked questions
Is this calculator accurate?
Yes. The age calculator works from your birth date and today's date in your browser's local time zone, accounting for leap years automatically.
What timezone does it use?
The calculator uses your device's local timezone to determine today's date, so the age is calculated relative to midnight in your timezone.
Can I use this for documents?
This calculator gives you your exact age at a glance. For official documents, your age on a specific date is based on your birth date and that date according to your local jurisdiction.