Age in Days
Find your total days, weeks and time lived from your date of birth.
Age in Days Calculator
How many days old am I? Enter your date of birth in InfoJano’s free age calculator to find your total days lived, full weeks and remaining days. You can count up to today or choose another date.
Open Free Age CalculatorHow many days have I been alive?
The total age in days is the number of calendar days between your date of birth and the date you choose. Search phrases such as “how many days old am I”, “days since I was born”, “how many days have I been alive” and “total days since birth” all describe this calculation.
Age in days, weeks, hours and minutes
InfoJano’s Age Calculator shows the exact calendar-day total and its equivalent in complete weeks plus leftover days. It also displays hours and minutes calculated from whole calendar days. These hour and minute totals do not use your time of birth.
Calculate age on any date
Use the “Calculate age on a date” field to find how many days old you were on a past date or will be on a future date. The selected date cannot be earlier than your date of birth.
Frequently Asked Questions
How do I calculate my age in days?
Enter your date of birth and choose today or another reference date. The calculator subtracts the birth date from the selected date using calendar days.
How many days old am I today?
Open the Age Calculator, enter your date of birth and calculate. The total-days figure shows how many whole calendar days have elapsed.
Does the age in days calculator include leap years?
Yes. Actual calendar dates are used, so February 29 is included whenever it occurs between the two dates.
Can I find how many days old I was on a past date?
Yes. Select a past reference date on or after your date of birth. The calculator will show your age on that date.
Is age in hours exact?
The displayed hours and minutes are based on whole calendar days (24 hours per day). They do not account for the time of birth.