DOB Calculator
The DOB Calculator is a free online Date of Birth and Age Calculator that calculates your exact age between your birth date and a selected calculation date.
Simply enter your date of birth and choose the date on which you want to calculate your age. The calculator instantly provides your exact age in years, months, and days along with additional date and birthday information.
Key Features
- Calculate exact age in years, months, and days
- Calculate age on any selected date
- Calculate total days lived
- Calculate total weeks
- Calculate total months
- Find the exact day of birth
- Find your next birthday
- Calculate days remaining until your next birthday
- Detailed age calculation
- Leap-year-aware calculations
- Instant results
- Copy results easily
- Mobile-friendly design
- Free to use
- No registration required
How to Use the DOB Calculator
- Enter your Date of Birth.
- Select the Calculate Age At date.
- The calculator automatically calculates your exact age.
- View your age in years, months, and days.
- Check total days, weeks, and months.
- See your day of birth and next birthday.
- Use Copy Result to copy the complete calculation.
Example
If your date of birth is:
15 January 2000
and the calculation date is:
7 September 2026
the calculator determines your completed age using calendar-based calculation rather than simply subtracting the birth year from the current year.
The result is displayed as:
26 years, 7 months, 23 days
The tool also provides the total number of days, weeks, months, and information about your next birthday.
Calculation Details
The calculator compares the date of birth with the selected calculation date and calculates the completed years, remaining months, and remaining days.
It also handles different month lengths and leap years so that the age calculation is based on actual calendar dates.