How to Convert Date of Birth to Age in Excel (3 Easy Ways)

Method 1 – Using Generic Formula to Convert Date of Birth to Age in Excel

In our sample database, we added two new columns, D & E called Current Date and Age.

Use of Generic Formula to convert date of birth to age in excel

Steps:

  • Select the E5
  • Enter the following formula in the Formula bar:
=INT((D5-C5)/365)

Use of Generic Formula to convert date of birth to age in excel

  • Press Enter.
  • The result is in date format.

Use of Generic Formula to convert date of birth to age in excel

  • To fix this, go to the Home tab of your Toolbar.
  • Click on Number. You’ll see that that the format is in Date.

Use of Generic Formula to convert date of birth to age in excel

  • Change the format from Date to General.

Use of Generic Formula to convert date of birth to age in excel

  • The age will be shown in numeric format.
  • Use the Fill Handle to copy the formula from E5 to E10.

Use of Generic Formula to convert date of birth to age in excel

  • You will get the result as shown below.

Use of Generic Formula to convert date of birth to age in excel

Read More: How to Calculate Age in Excel in dd/mm/yyyy


Method 2 – Applying the YEARFRAC Function to Convert Date of Birth to Age in Excel

Steps:

  • Select the E5 cell.
  • Enter the following formula in the Formula bar.
=ROUNDDOWN(YEARFRAC(C5, D5, 1), 0)

Here,

  • YEARFRAC Function returns a fraction value.
  • The ROUNDDOWN Function rounds this fraction value.

Application of YEARFRAC Function to Convert Date of Birth to Age in Excel

  • Press Enter to get the result.
  • Fill Handle the formula from E5 to E10.

 


Method 3 – Converting Date of Birth to Age in Excel Using the DATEDIF Function

Steps:

  • Select cell E5.
  • Enter the following formula in the cell.
=DATEDIF(C5,D5,"Y") & " Years, " & DATEDIF(C5,D5,"YM") & " Months, " &   DATEDIF(C5,D5,"MD") & " Days"

Convert Date of Birth to Age in Excel Using DATEDIF Function

  • You will get the age with years, months and dates.
  • Fill Handle the formula from E5 to E10.

 

Read More: How to Calculate Age on a Specific Date with Formula


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Souptik Roy
Souptik Roy

Souptik Roy, a BSc graduate in Naval Architecture and Marine Engineering from Bangladesh University of Engineering and Technology, dedicated 1.5 years to the ExcelDemy project. During this time, he authored 50+ articles and reviewed 20+ for ExcelDemy. Presently, he is a designer and content developer at YouHaveGotThisMath and Brainor, sister concerns of ExcelDemy. His educational content spans science, mathematics, and grammar. Roy's interests include developing creative ideas, visualizing concepts with tools like Adobe Illustrator, and problem-solving within Microsoft... Read Full Bio

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