By / July 27, 2025

Calculate your Age: Personalize Age Calculator

Age Calculator

Overview Age Calculator

Welcome to the personalize age calculator! Enter your birthdate to calculate your age. Enter a past or upcoming date into the ‘Your Birth Date’ field to find your age.

If you’ve ever wondered, ‘How many months have I lived?’ or ‘How many days have I lived?’ this calculator not only answers those questions but also provides your age in days, weeks, months
Our calculator does more than calculate human ages. 

It will help you date artifacts, antiques, family heirlooms, and trees by their creation or discovery. In Historical or Cultural contexts, Age Calculators can determine the age of structures, Memorials, and institutions from their founding date. To determine the item’s age, enter the acquisition date, landmark construction date

What is an Age Calculator?

An age calculator is tools created by computer program that helps you to figure out how old a person, thing, or somewhere is from a certain start date to a given end date. It can help people plan in full detail or keep track of important dates and milestones. 

Age calculators are especially helpful for figuring out if you are old enough to do certain things or get certain benefits. For example, they can be used to fill out forms for school or college admission, tests, or job applications.

How To Use This Age Calculator?

The calculator auto fills in ‘Your Birth Date’, ‘Your Birth Date (From) and ‘To Date on today. It calculates using Gregorian calendar.
Enter ‘Your Birth Date (From)’ and leave ‘To Date’ blank to calculate your current age or an object’s age. Fill out ‘Your Birth Date’ and mark the ‘Current Date’ to figure out your age or an object’s age on a specific date.

How does this age calculator work?

  • India is a mix of cultures with different calendars. Saka, Vikram, and Hijri calendars stand out. India and other nations use the Gregorian calendar for official purposes.
  • This calculator calculates using the Gregorian calendar. Except for leap years, this calendar has 365 days per year. Yearly days are divided into a year of different lengths. Except February, which consists of 28 days in an average year and 29 in a leap year, each month has 30 or 31 days.
  • This calculator uses the most common age system. This calculator starts at zero and turns a person one year old after 12 months. In any age calculation there, the age gets higher by one year after one year since their birth date/start date.

Formula of AGE Calculator

  • Age in Years:

    Age in Years=Current Year−Birth Year

    • If today’s date is before your birthday this year, subtract 1 from the age.

  • Age in Months:

    Age in Months=

    • If the current month is before your birth month, subtract 1 and add 12 months.

  • Age in Days: Calculate the number of days from your birthday to today by considering the days in each month between the two dates:

       

Example Calculation:

Birth Date: May 23, 1998
Current Date: November 9, 2024

  1. Age in Years:

    2024−1998=26 years

    No adjustment needed since today’s date is after May 23, 2024.

  2. Age in Months:

    11(November)−5(May)=6 months

  3. Age in Days:
    From May 23 to November 9:

    8(May 23-31)+30(June)+31(July)+31(August)+30(September)+31(October)+9(November 1-9)=170 days

Final Result:

You are 26 years, 6 months, and 170 days old.

Formula to Calculate Age in Months:

  • Find the number of years that divide the present year from the year you were born.
  • Convert years into months by multiplying the difference in years by 12.
  • Calculate the difference in months between the current month and your birth month.
  • Add the months from steps 2 and 3 together.

Step-by-Step Example:

Birth Date: May 23, 1998
Current Date: November 9, 2024

1. Calculate the Difference in Years:

2024−1998=26 years

2. Convert Years to Months:

26 years×12 months per year=312 months

3. Calculate the Difference in Months:

  • The current month is November, and the birth month is May.
  • The difference in months is: 11(November)−5(May)=6 months

4. Add the Months Together:

312 months+6 months=318 months

Final Result:

You are 318 months old as of November 9, 2024.

Formula Summary:

What are the Format of the Date?

Some people are confused by the different date writing styles.

American date format is MM/DD/YYYY.
DD/MM/YYYY is the British date format.

Understanding the Running Age or Completed Age

It is one of most frequently asked queries when calculating age: running age or completed age?

Before answering, you need to understand running age and completed age.

Completed age is your age in years since your birthday. But running age is your current year of life.

If you were born on August 8, 2002, you are 25 Years – 9 Months – 7 Days old. As you are in your 25th year, your running age is 26.

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