A age calculator helps you calculate age calculator values accurately and instantly.
Calculate your exact age in years, months, days, and more.
An age calculator computes your exact age in years, months, and days from your date of birth to any given date (default: today).
Example: Born January 15, 1990, as of March 31, 2026 → 36 years, 2 months, and 16 days old.
Enter your date of birth and optionally a target date. The calculator shows your exact age in years, months, and days.
Age is calculated by finding the difference between the two dates, accounting for varying month lengths and leap years.
Yes, you can use any past or future date as the reference point, making it useful for historical or planning purposes.
To calculate exact age, subtract your date of birth from the current date. The result gives your age in years, months, and days. Account for varying month lengths (28-31 days) and leap years in the calculation.
To find days old, calculate the number of days between your birth date and today, including leap year days. For example, someone born on January 1, 2000 is approximately 9,586 days old as of March 31, 2026.
Leap years (divisible by 4, except centuries unless divisible by 400) add an extra day (February 29) to the calendar. Age calculators must account for leap years to accurately count days between dates. There have been 7 leap years since 2000.