Calculate age from a date of birth
Inputs
- birthDate
- 2000-01-01
Result
The calculator compares January 1, 2000 with the current date and displays the completed age in years, months, and days, along with total days and the next birthday.
Everyday
Age Calculator
Calculate your exact age in years, months, and days from your date of birth.
Age Calculator calculator
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Age Calculator
Enter the values below to calculate your result.
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Your result will appear here
Enter the required values and click Calculate to see your result.
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How does the age calculator work?
Enter your date of birth and the calculator compares it with today's date to determine your completed age in years, months, and days. It also calculates the total number of days since your birth and the date of your next birthday.
Formula
Current date − Date of birthExamples
Calculate age for a recent birthday
Inputs
- birthDate
- 1995-06-15
Result
Enter the date of birth to calculate the current age precisely and determine the next birthday.
About this calculator
An age calculator helps you calculate your exact age from your date of birth. Instead of manually working out the difference between two dates, you can enter your birth date and get the result instantly.
The calculator shows your completed age in years, months, and days. This makes it useful when you need a more precise age than simply calculating the difference between two calendar years.
You can also use the calculator to find the total number of days since your date of birth and the date of your next birthday.
Age calculations can be useful for everyday purposes, birthday planning, eligibility checks, forms, applications, and other situations where an accurate age is required.
The result is calculated using the current date, so your age and next birthday information can change as time passes.
Frequently asked questions
How is age calculated?
Age is calculated by comparing the date of birth with the current date. The calculator determines the completed years, remaining months, and remaining days between the two dates.
Can I calculate my exact age?
Yes. The calculator provides your age in completed years, months, and days rather than only showing the difference between the birth year and the current year.
Can I calculate my age in days?
Yes. The calculator also provides the total number of days since your date of birth.
How do I calculate my age from my date of birth?
Select your date of birth and the calculator compares it with the current date to determine your age.
Can I enter a future date as my date of birth?
No. A date of birth must be today or an earlier date. Future dates are not valid birth dates for this calculator.
Does my calculated age change every day?
Yes. Your age in years, months, and days can change as the current date changes, especially around your birthday and monthly date boundaries.
Can I use this calculator to find my next birthday?
Yes. After entering your date of birth, the calculator shows the date of your next birthday.
Does the age calculator account for leap years?
The calculation uses the date difference handled by the calculator's date calculation logic, including calendar dates across leap years.
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