Calculate your age from your date of birth.
Dayvilo calculates your exact calendar age from your date of birth to the age-at date. It does not simply divide the total number of days by 365. Instead, it counts complete years, then the remaining complete months, then the remaining days, so the result reflects the real calendar.
The result shows your age prominently in years, along with the full breakdown in years, months, and days. It also shows the total number of days you have lived and the date of your next birthday.
If you were born on February 29, that date only exists in leap years. In non-leap years, Dayvilo treats your birthday as February 28 for the purpose of counting your age and finding your next birthday. This keeps the result consistent and predictable every year.
The age-at date defaults to today, so you can quickly see how old you are right now. Change it to any other date to find out how old you were in the past or how old you will be in the future. If the age-at date is before your date of birth, Dayvilo shows a message instead of a negative age.
Dayvilo counts complete years from your date of birth to the age-at date, then the remaining complete months, then the remaining days. It does not divide total days by 365, so the result matches the real calendar.
Yes. The age-at date defaults to today, but you can set it to any past or future date to see how old you were or will be on that date.
February 29 exists only in leap years. In non-leap years, Dayvilo treats the birthday as February 28 when counting your age and finding your next birthday.
Dayvilo shows an inline message asking you to choose a date on or after your date of birth, rather than showing a negative age.
Yes. The calculation is based on real calendar dates, so leap years, varying month lengths, and month boundaries are all handled correctly.
No. Dayvilo shows your age in years, months, and days, plus total days and your next birthday. It does not include seconds or a live ticking counter.