Age Calculator
Calculate exact age in years, months, and days, plus total days and the next birthday.
Everything runs in your browser. Files and text are not uploaded or saved.Age
26 years, 10 months, 9 days Years: 26 Months: 10 Days: 9 Total days: 9810 Next birthday: January 1, 2027 Days until birthday: 52 Day of week born: Saturday
How to Use
- Enter the date of birth.
- Change As of Date when you want the age on another day. It starts as today.
- Read the detailed age, total days, next birthday, and weekday of birth.
- Copy the result or reset the dates.
FAQ
Can the birthday be after the selected date?
No. The calculator stops and explains that the birth date has to be on or before the selected date.
How is February 29 handled?
In a non-leap year the anniversary and next birthday use February 28.
Can I calculate a past age?
Yes. Change As of Date to any valid date on or after the birthday.