Date & TimeSeptember 8, 20262 min read
How do you calculate age from a date of birth?
Get your age in years, months and days, and how many days you've lived.
Age is the number of whole years, months and days between your date of birth and today. Count the whole years first, then the remaining months, and finally the leftover days.
Born 15 June 1995, calculated on 20 September 2025: 30 years, 3 months and 5 days. That is 11,055 days in total; 30 years are 10,958 days, leap years included.
Born on 29 February
In years without a 29 February the age ticks over on 28 February. The calculator follows this rule and also shows your next birthday.