Calculate your precise age in years, months, and days. Determine the exact time duration between any two dates instantly.
Date of birth
Date
The exact age is:
0
Years
0
Months
0
Days
Age is typically counted in years, but for precise measurements—like medical records, legal documents, or personal milestones—knowing the exact number of months and days is essential.
Our tool uses the Gregorian calendar system. It calculates the full years first, then the remaining full months, and finally the days. It automatically adjusts for leap years and the varying number of days in each month.
This tool is perfect for calculating age for school admissions, insurance policies, retirement planning, or simply finding out exactly how many days you've been alive.
Does it account for leap years?
Yes, the calculator considers leap years (years with 366 days) to ensure the day count is perfectly accurate.
Can I calculate duration between any dates?
Absolutely. While it defaults to 'Date of Birth' and 'Today', you can change the Target Date to any past or future date to calculate the duration between them.
Why is the day count sometimes different?
Months have different lengths (28, 30, or 31 days). Our calculator borrows days from the previous month correctly based on the specific month length.
Is this data private?
Yes, all calculations happen instantly in your browser. We do not store your birth date or any personal information.