Which date does the calculator use as its reference?
It fills in the current date when it starts, but you can enter a different reference date before calculating.
Age Calculator
Age Calculator
Find an exact age and details about the next birthday.
Age Calculator
Result
- Exact age
- Approximate months
- Approximate weeks
- Exact total days
- Birth weekday
- Next birthday
- Days until next birthday
How to use the age calculator
- Enter the date of birth in the first field.
- Check or change the reference date in the second field; it is filled with the current date when the tool opens.
- Select Calculate age to view the age between the two dates and birthday information.
Born on June 15, 2000
Use June 15, 2000 as the date of birth and June 15, 2024 as the reference date.
June 15, 2000 → June 15, 2024 = 24 years, 0 months, and 0 days
Because the reference date is explicit, this example does not depend on the day the page is opened.
Useful situations
- View age between a date of birth and a chosen reference date.
- Check total days, approximate months and weeks, and the birth weekday.
- See the next birthday date calculated by the tool.
Notes and limitations
- The result depends on the reference date entered. When the page opens, that field receives the current date, but you can change it.
- The date of birth cannot be later than the reference date.
- Use the result as informational support only; it does not replace medical, legal, official, or contractual calculations.
Frequently asked questions
Can I calculate age on a past or future date?
Yes, as long as the reference date is the same as or later than the date of birth.
What information appears in the result?
The tool shows age in years, months, and days, total days, approximate months and weeks, birth weekday, and next-birthday details.
Is the result suitable for official use?
No. For medical, legal, official, or contractual situations, follow the relevant rules and documentation.