Age Calculator
Find an exact age in years, months and days from a date of birth.
Dates
Everything is calculated in your browser.
Defaults to today.
Enter a date of birth to see age, countdown and milestones.
About this tool
Find an exact age in years, months and days from a date of birth, see the countdown to the next birthday, or work out the difference between any two dates. A third tab compares two people's ages.
How to use it
- Choose the Age, Date difference or Compare ages tab.
- Enter the dates.
- Read the exact result, timeline, next-birthday countdown and working days.
- Print the result if you need a copy.
Example
Someone born on 15 March 1995 is 31 years, 6 months and 18 days old on 3 October 2026.
Frequently asked questions
- How are months counted when a month is shorter?
- A month is counted once the same day number is reached. If the day does not exist in a shorter month, the last day of that month is used.