Age Calculator
Calculate your exact age in years, months and days — and see when your next birthday arrives.
Enter your dates
Choose your date of birth. The calculator uses your selected calculation date.
Your dates are processed in this browser. A future date of birth or a calculation date before the birth date will be rejected.
Your age result
Your age breakdown will appear here after calculation.
Free Online Age Calculator
Use this age calculator online to calculate your exact age from your date of birth. The calculator gives your age in years, months and days, and can calculate your age on a past or present date. It also shows total months, weeks and days lived, your birth weekday and the date of your next birthday.
How to calculate age by date of birth
Choose your date of birth, select the date you want to calculate your age on, and click Calculate my age. Your result appears instantly. This date of birth age calculator accounts for calendar month lengths and leap years. Your entered dates are processed in your browser.
What you can calculate
- Exact chronological age in years, months and days
- Age on a selected past or present date
- Total months, weeks and days since birth
- Day of the week you were born
- Next birthday date and days remaining
Age Calculator FAQs
- Is this age calculator free? Yes. JIOPDF's online age calculator is free to use in your browser.
- How do I calculate my age from my date of birth? Enter your birth date, choose the calculation date and select Calculate my age to see your exact age in years, months and days.
- Can I calculate my age on a past date? Yes. Change the “Calculate age on” date to any valid date on or after your date of birth.
- Does the age calculator account for leap years? Yes. The calculation uses calendar dates and includes leap-year dates.
- Can I calculate my age in days and months? Yes. The result includes total months, total weeks and total days lived, in addition to your calendar age.
- Is my date of birth uploaded? No. The calculation runs locally in your browser; the date is not sent to a JIOPDF processing server by this tool.
Keep important personal records accurate. This calculator is for general age calculations.