Age Calculator, Date of Birth Calculator, What is My Age?
Age Calculator | Age | Calculator | Date of birth calculator
AGE CALCULATOR ONLINE
Age Calculator, Date of Birth Calculator & What Is My Age?
Find your exact age in years, months, days, hours, minutes, and seconds. Includes Age on Date, Age Difference, Next Birthday, and downloadable results. All calculations run locally in your browser (privacy-friendly).
Calculate Your Current Age
Enter your Date of Birth. Optionally include a time for second-level precision. Choose an "as on" date to compute age at a specific point in time.
Quick Results
Exact Age Breakdown
Next Birthday
Leap-day (29 Feb) birthdays default to 28 Feb in non-leap years; toggle in settings to use 1 Mar.
Age Difference
Preferences
How the Age Calculator Works
The calculator subtracts your date (and time) of birth from the selected reference date (defaults to today) and presents the result both as a calendar difference (years–months–days) and as continuous totals (days, hours, seconds). We account for month/day borrowing, leap years, daylight saving transitions, and leap-day preferences.
Formulas You Can Re-Use
- Y–M–D: iterative difference with month/day borrow.
- Totals: UNIX-epoch milliseconds delta divided by relevant constants.
- Weeks:
Math.floor(days / 7).
Tip: You can set an "Age As On" date to compute eligibility for exams (e.g., UPSC) or retirement cutoffs.
Made with ❤️ — All calculations happen locally in your browser. No data is uploaded.