Date and time
Age Calculator
Use this age calculator to find exact age from a birth date, including years, months, days, total days lived, and the next birthday countdown. You can also calculate age on a specific date.
How to use Age Calculator
- Enter the birth date.
- Choose the date to calculate age on, such as today, a future eligibility date, or a past record date.
- Read exact age, total days, and next birthday details.
Example workflow
Enter a birth date and a future event date to check exact age on that date in years, months, and days.
Privacy and limits
The birth date is used only in your browser while the page is open.
For official eligibility, confirm the required cutoff rule because some forms count dates differently.
Common uses
- Find exact age for forms or records.
- Calculate age on a specific future date.
- See total days lived from a birth date.
- Check the next birthday date and countdown.
FAQ
Can I calculate age on another date?
Yes. Change the Age on field to any date after the birth date.
Does it account for month lengths?
Yes. The exact age calculation uses calendar years, months, and days.
Is the birth date saved?
No. It is only used in your browser while the page is open.