Calculate your exact age from date of birth with this free DOB age calculator.
Pick a birth date to calculate age instantly.
Select a date of birth to view an exact age breakdown in years, months, days, and more.
A date of birth age calculator determines your exact age using your birth date and today’s date or another selected date. It is useful for forms, applications, school records, medical paperwork, and personal age tracking.
Age = Current Date − Date of Birth
Current Year − Birth Year, adjusted if the birthday has not happened yet
Input: Date of Birth = Aug 20, 1998
Result: Exact age up to today
Input: Date of Birth = Aug 20, 1998; Target Date = Aug 20, 2025
Result: Exact age on that target date
A DOB age calculator gives a fast and accurate age result without manual counting. It is especially useful for official forms, eligibility checks, and record keeping.
Many schools, employers, and institutions require exact age from date of birth. Using a calculator helps ensure the result is accurate.
Some people need their age today, while others need their age on a past or future date. A DOB age calculator can help with both.
Enter your date of birth and compare it with today’s date or a selected target date to get your exact age.
Yes. The calculator can break your age down into years, months, and days.
Yes, as long as the date inputs are correct and the calculation accounts for month lengths and leap years.
Yes. You can enter any valid date of birth to calculate that person’s age.
Yes. You can compare a date of birth with today or another selected date.
Browse related calculator variations and find the version that matches your preferred units or use case.
Measure exact chronological age from birth to a selected date.
Convert age into total completed months.
Find total days lived from birth date.
Check age and countdown to the next birthday.
Calculate exact age in years, months, and days.
Calculate your monthly mortgage payment instantly. Includes principal, interest, taxes, insurance, and full amortization schedule.
Determine your Body Mass Index and assess your physical health status accurately.
Solve percentage-based problems quickly, including increases, decreases, and proportions.
Figure out final prices and total savings when discounts are applied.
Calculate the duration between two dates for planning and timeline management.
