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Time
Age Calculator
Discover your exact lifetime statistics, countdowns, zodiac elements, or compare ages between two people.
How the Age Calculator Works
This calculator computes your exact age in years, months, and days by comparing your date of birth to a chosen reference date (defaulting to today). It accounts for the varying number of days in each month and correctly handles leap years, so the result is always precise to the day.
Formula Used
Age = (Reference Date) − (Date of Birth)
- Reference Date
- — the date you want to calculate age as of (defaults to today's date)
- Date of Birth
- — your birth date in YYYY-MM-DD format
- Result
- — the difference broken down into complete years, remaining months, and remaining days, with additional conversions to total weeks, hours, and minutes
Example Calculation
Suppose someone was born on 15 March 1990 and today is 27 July 2025. The calculator first counts complete years: 35 years. Then the remaining months: March to July = 4 complete months. Finally the remaining days: 15 July to 27 July = 12 days. The result is 35 years, 4 months, and 12 days.