Age Calculator
Enter a date of birth to see the exact age today or on any date, the total days and weeks lived, and the countdown to the next birthday.
Calculate an age
30 years, 9 months and 9 days
Born on a Monday, January 1, 1996, age today.
- In months
- 369
- In weeks
- 1,605
- In days
- 11,240
- Next birthday
- Friday, January 1, 2027 (turns 31)
- Days to next birthday
- 83
How age is calculated
Age counts complete years since the date of birth, then complete months, then the days left over, the way ages are given on official forms. Someone born on February 29 has a birthday on February 28 in common years in this calculator; some countries use March 1 instead.
Change "Age on" to find someone's age on a past or future date, such as the first day of school or a retirement date.