Calculate exact age in years, months and days from a birth date, with total months, weeks, days and hours, plus your next birthday. Free online tool. All processing runs locally in your browser. Your data is not uploaded to any server.
100% Local Processing
How to Use
Enter a birth date and get the exact age in years, months and days, plus the total in months, weeks, days, hours and minutes.
Steps
Enter the birth date.
Optionally set a reference date. Leave it empty to use today.
Click Calculate and read the age and the next birthday.
What the result shows
Exact age in years, months and days.
Total months, weeks, days, hours and minutes lived.
The next birthday, its weekday and how many days away it is.
The age you will be at that next birthday.
Features
Age is computed month by month, never by dividing days by 365.
Reference date support makes historical ages easy to check.
29 February birthdays roll to 28 February in non-leap years.
All processing runs locally in your browser. Your data is not uploaded to any server.