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How to convert birthdate to age quickly in Excel?

For instance, you get a range of various birthdate data in Excel, and you need to convert these birthdate to display their exact age value in Excel, how would you like to figure out? This article lists some tips to convert the birth date to age in Excel easily.

Method A:
Convert birthdate to age with formulas

Method B:
Easily convert birthdate to age without remembering formulas


Convert birthdate to age with formulas

The below formulas can help to calculate age based on birthdate in Excel.

Convert birthdate to age with the INT function

The INT function can help to calculate a person's age based on given birthdate, please do as follows.

1. Supposing there are two columns containing birthdate and current date separately.

2. Select a blank cell to output the age, enter the below formula into it and press the Enter key. Select the result cell and then drag it's Fill Handle down to get all results.

=INT((B2-A2)/365)

Convert birthdate to age with the DATEDIF function

The below DATEDIF function can also help.

Select a blank cell to output the age, enter the below formula into it and press the Enter key. Select the result cell and then drag it's Fill Handle down to get all results.

=DATEDIF(A2,NOW(),"y")

Convert birthdate to age with the ROUNDDOWN function

Try the ROUNDDOWN function to calculate age based on birthday as below.

Select a blank cell to output the age, enter the below formula into it and press the Enter key. Select the result cell and then drag it's Fill Handle down to get all results.

=ROUNDDOWN(YEARFRAC(A2, TODAY(), 1), 0)

Display the age as Year + Month + Day format with the DATEDIF function

If you want to display the age as Year + Month + Day format, please try the below DATEDIF function.

Select a blank cell to output the age, enter the below formula into it and press the Enter key. Select the result cell and then drag it's Fill Handle down to get all results.

=DATEDIF(A2,TODAY(),"Y") & " Years, " & DATEDIF(A2,TODAY(),"YM") & " Months, " & DATEDIF(A2,TODAY(),"MD") & " Days"


Easily convert birthdate to age without remembering formulas

You can easily convert birthdate to age without remembering formulas with the Date & Time Helper of Kutools for Excel. 

Before applying Kutools for Excel, please download and install it firstly.

1. Select a blank cell to output the age. Then click Kutools > Formula Helper > Date & Time Helper

2. In the Date & Time Helper dialog box, please configure as follows.

  • 2.1) Go to the Age tab;
  • 2.2) In the Date of Birth box, select the cell containing the birth date you will convert to age;
  • 2.3) Choose the Today option in the To section;
  • 2.4) Specify an result type from the Output result type drop-down list;
  • 2.5) Click the OK button.

Then the age is populated in selected cell. Select the result cell and then drag the Fill Handle all the way down to get all ages.

Note: If you want to display the age as Year + Month + Day format, please select Year + Month + Day from the Output result type drop-down list. And the result will be shown as the below screenshot shown. It also supports to display the age as month, week or day based on your needs.

  If you want to have a free trial ( 30-day) of this utility, please click to download it, and then go to apply the operation according above steps.


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Comments (138)
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This comment was minimized by the moderator on the site
:lol: it is helpful for me
This comment was minimized by the moderator on the site
[quote]:lol: it is helpful for meBy Berjang Pun[/quote] VERY EASY TO KNOW THE DATE OF BIRT COUNT AS YEARLY AGE..? YOU CAN ..AS BELOW 10/8/1980-TODAY DATE=?????? THEN YOU CAN / BY 365 EASILY U WILL GETS THE POINT..
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I've been looking for the "round down" option, but didn't know there was one. Thank you!
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=FLOOR() would also do the trick
This comment was minimized by the moderator on the site
[quote]=FLOOR() would also do the trickBy Thom H[/quote] how is this being used? () what should be inside this parentheses?
This comment was minimized by the moderator on the site
Hi Robyn, The Cell you wish to round down should be inside of the parentheses i.e. if you are rounding down cell A1 it would be =Floor(A1)
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I need a formula that will allow me to punch in a DOB and then find out the exact day that a person turns exactly 70 1/2.
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=EDATE(A1,906) with DOB in Cell A1
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This is very helpful and very clear to understand for any one. I also need it. It help me a lot.
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very nice..A13 means A2..Very helpful..makes work easier..thanks for the formula..
This comment was minimized by the moderator on the site
Try this formula to convert date of birht to Age.
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it is very helpful. It is helpful to beginners as well as skilled person
This comment was minimized by the moderator on the site
I have been looking for a formula that gives me the age from a Bdate for months now, I found several but they never worked. This was so easy to understand...... Made me look for other items. :-) Thank you so much.
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hello this is fawad khan want some information about ageses
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i have a whole bunch of cells i have to convert to age, how do i do it faster?
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create the chosen formula in the cell to the right of the first DOB, then you can drag the function down all of the rows with the anchor in the bottom right of the cell containing the function. This method will work for most of the above, but if you're using method a. i.e. One where the current date is a reference to a different cell that contains the current date, you'll need to amend the top formula to make it into an absolute reference, so if your formula was option one (=(B2-A2)/365) assuming your dates are all in column A, you can amend the too function to =($B$2-A2)/365. Notice how I've anchored the b2 cell reference while the a2 cell reference will change as you drag the function down.
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hi i tried all of those methods and it didnt work out it alwyas return with result (#value!)
This comment was minimized by the moderator on the site
Hi Kassem, #Value means that the Cells your Function refers to are not in the correct format for the Formula you are using i.e. using =SUM() on two Cells containing Text. All of the above functions are written assuming we're working with Cells containing only Dates. The trouble is, Excel can sometimes see something as a different format to that which you see. Firstly, make sure the dates are in the correct uniform (DD/MM/YYYY). Secondly, make a small amendment to the Cell references in the Date Formula using the =text() function to tell it to read it as a Date . Assuming we're using the DATEDIF() function with the Birthdate in A1 and the current date in B1, which would be =DATEDIF(A1,B1,"y"), we can force the Function to read Cell A1 as a date by amending it like so =DATEDIF(TEXT(A1,"DD/MM/YYYY"),B1,"y").
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i like method d for calculating age, it's very easy & suitable formula in excel. :D
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=DATEDIF(A13,TODAY(),"Y") & " Years, " & DATEDIF(A13,TODAY(),"YM") & " Months, " & DATEDIF(A13,TODAY(),"MD") & " Days" this formula is very easy & suitable for calculating age in excel, i like it..............
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a problem i faced. like: birth date = 1st Nov.'2014, today is 31st Dec.'2015 then the result comes = 1 year, 1 month, 30 days, but the days should be 1day more i.e. 31 days. how can I do this in the above formula? pls help
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yes its very helpful for me. i easily understand. :)
This comment was minimized by the moderator on the site
method D is returning a value while date cell is blank, how to return value "0" or blank when there's no date filled in cell?
This comment was minimized by the moderator on the site
Hi Mark Excel uses an internal calendar which starts at 01/01/1900. When a start date isn't present it will automatically choose the first date in its calendari I'd say use an IF() function, assuming the start date is in cell A1, you could use =IF(A1="","",INSERT CHOSEN DATE FUNCTION HERE) This function checks cell A1, then returns no value if the cell is blank, but does your chosen formula if the cell is active (contains data). If it's likely that sometimes the start date will be blank and sometimes the end date will, then you'll need to add in the AND( ) function so once again assuming start date is in Cell A1 and end is in B1 you'd use =IF(AND(A1>0,B1>0),INSERT CHOSEN DATE FUNCTION HERE,"")
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THOM H... thank you so much... you're the best!
This comment was minimized by the moderator on the site
Hi Mark04, Excel will automatically treat the Empty Cell as a date and just use the first date in it's Calendar (01/01/1900). You'll need to use an IF() function. Assuming the start date is in A1 and the end date is in B1 I'd go for =IF(AND(A1>0,B1>0),INSERT CHOSEN DATE FUNCTION HERE,"") This will leave the Cell Blank if there isn't a value in both Cells A1 & B1.
This comment was minimized by the moderator on the site
I really love this website. I can find whatever I need immediately. Plz continue to update n search for more useful function. :P
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04/05/2012 =DATEDIF(A13,TODAY(),"Y") & " Years, " & DATEDIF(A13,TODAY(),"YM") & " Months, " & DATEDIF(A13,TODAY(),"MD") & " Days" i WANT TO CALCULATE DATE AS OF TODAY BUT WHEN I INSERTED THE FORMULA IN THE CELL I AM GETTING 114 Years, 4 Months, 10 Days WHICH IS OBVIOUSLY WRONG
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Is the first date definitely in Cell A13 as that's where the Argument is looking for the first date. It looks as though A13 is blank, thus it's counting the difference between today and the start of Excel's Calendar (What it would consider as date 0). The only other thing it could be is that it's reading the first date as blank because it's not in the correct format, but I believe that would bring up a #Value error. Either way, it's worth checking the format of the Cell. You can either go right click> format Cells> Date> OK, or you can switch each reference to Cell A13 with an =TEXT() so it would be: =DATEDIF(TEXT(A13,"DD/MM/YYYY"),TODAY(),"Y") & " Years, " & DATEDIF(TEXT(A13,"DD/MM/YYYY"),TODAY(),"YM") & " Months, " & DATEDIF(TEXT(A13,"DD/MM/YYYY"),TODAY(),"MD") & " Days" Before all of that though, did you copy and paste your Function straight from your Spread sheet, because I error checked it and there were a couple of spaces in the TODAY() functions that threw it and gave me a #NAME error. Try it again by copying and pasting the following: =DATEDIF(A13,TODAY(),"Y") & " Years, " & DATEDIF(A13,TODAY(),"YM") & " Months, " & DATEDIF(A13,TODAY(),"MD") & " Days" Once again, make sure your start date is in Cell A13!
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Hi,,, you only looking this only ya,,, :-)
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Does Method D compensate for the day lost/gained on a leap year?
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Hi, How do you use Index and Match function to find age from a person birth date? Thanks.
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i need a formula based on a child's birthdate how old he will be on September 1, 2014 (or any other year). cannot finagle the formula =DATEDIF(A13,TODAY(),"Y") to not be TODAY, but 9/1/14. can someone help. I'm sure it's easy :)
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Hi VRB, You could either put the date in a separate cell and reference that Cell instead of TODAY(). This would mean you can change the date as you please without having to risk breaking the Argument (Function). Assuming the Date (01/09/14) is in Cell A1, you could use =DATEDIF(A13,TEXT(A1,"DD/MM/YYYY"),"Y") Alternatively, if you want to just switch the TODAY() function with that date then you'd use this: =DATEDIF(A13,DATE(2014,9,1),"Y")
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Hi, May I know why when I try get for the next age, its become error? 28/06/1986 04/06/2014 27 "28/03/1987 04/06/2014 #VALUE! "03/03/1942 04/06/2014 #VALUE! "01/01/2000 04/06/2014 #VALUE! "03/03/1945 04/06/2014 #VALUE!
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Hi Lucy, I'd need more context as to what you're trying to set up, how it's done and your chosen function but it looks as though you've put the age function into the third column then you're dragging it down? If you check each function and just make sure the correct cells are referenced this should do the trick. #VALUE errors tend to mean that you're using referencing cells that don't contain data in the format the function expects. In this case the functions are looking for dates so Excel may well have converted your dates into text format? Easy fix = highlight the date cells, right click, format cells, format as date. If that doesn't work you'll need to create a secondary column next to each one (Which you can later hide) then use the =date() function to convert them into date format (see my reply to sanoj xavier further down the page for info on this function). Thanks, Thom
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Hi, This is very helpful and very clear to understand for any one.Helped me a lot. Thanks, Sandeep Sanjeevi.
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