## 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.

**Convert birthdate to age with formulas**

**Easily convert birthdate to age without remembering formulas **

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#### **Convert birthdate to age with formulas**

**Method A: Convert birthdate to age with subtraction**

Normally we figure out someone's age with current date subtracting the given birth date. So does it in Excel.

Step 1: Enter current date in a blank cell, such as 2016/4/7 in Cell B2.

Step 2: In another blank cell (says cell C2), enter the formula ** =INT((B2-A2)/365)**, and press the

**Enter**key.

**Method B: Convert birthdate to age with DATEDIF function**

Some would like to apply the DATEDIF function to calculate the age. Enter the formula ** =DATEDIF(A2,NOW(),"y")** in a blank cell, it calculates the age immediately after pressing the

**Enter**key.

**Method C: Convert birthdate to age with ROUNDDOWN function**

Another function to convert the birth date to age is ** =ROUNDDOWN(YEARFRAC(A2, TODAY(), 1), 0)**, which will figure out a standard age, such as 27.

**Method D: Convert birthdate to exact age with DATEDIF function**

Sometimes exact age is requires, and you may want to know how many years, months, and days from the birth date to current date. The following formula can help you figure out:

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

See the screen shot above, this formula will show you precise result, such as 23 Years, 8 Months, and 14 Days.

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#### **Easily convert birthdate to age without remembering formulas**

You can easily convert birthdate to age without remembering formulas with the **Calculate age based on birthday** function of **Kutools for Exce**l.

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1. Select a blank cell for locating the age. Then click **Kutools** > **Formula Helper** > **Calculate age based on birthday**. See screenshot:

2. In the** Formula Helper** dialog box, select the cell with the birth date you need to calculate in **Date** box, and then click the **OK** button. See screenshot:

3. After clicking **OK** in the **Formula Helper** dialog box, the age based on the birth date is populated in selected blank cell immediately. You can drag the Fill Handle to the cells you need to convert the birthdate to age. See screenshot:

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## Comments

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..

how is this being used? () what should be inside this parentheses?

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)

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.

#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(A 1,"DD/MM/YYYY") ,B1,"y").

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="","",IN SERT 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,"")

thank you so much... you're the best!

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.

=DATEDIF(A13,TODAY(),"Y") & " Years, " & DATEDIF(A13,TOD AY(),"YM") & " Months, " & DATEDIF(A13,TOD AY(),"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

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(A1 3,"DD/MM/YYYY") ,TODAY(),"YM") & " Months, " & DATEDIF(TEXT(A1 3,"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,TOD AY(),"YM") & " Months, " & DATEDIF(A13,TOD AY(),"MD") & " Days"

Once again, make sure your start date is in Cell A13!

you only looking this only ya,,,

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,DA TE(2014,9,1),"Y ")

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!

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

This is very helpful and very clear to understand for any one.Helped me a lot.

Thanks,

Sandeep Sanjeevi.

you'll need to convert it into a correctly formatted date first. then you can use any of the above functions. I'd recommend either doing this with a function in the column next to it, then referencing that column in your chosen function.

If you're feeling confident enough in excel you could try making a long argument by putting the conversion function into the age calculation function.

here's an example of what you could use, assuming "19610821" is in cell A1

=DATE(LEFT(A1,4),LEFT(RIGHT(A1,4),2),RIGHT(A1,2))

let me know how you get on.

regards,

Thom

for example if date12/6/1983 i want to calculate the date month year till 1/1/2014 what will be the formula? please help me..This is covered in Method D (Using your first date instead of the DOB and you'll need to take the today() functions out of method D and replace them with your end date, or a cell reference for the cell containing the end date, so if in your example you have 12/06/1983 in call A1 and 1/1/2014 in cell B1 then in cell C1 you could put:

=DATEDIF(A1,B1,"Y") & " Years, " & DATEDIF(A1,B1," YM") & " Months, " & DATEDIF(A1,B1," MD") & " Days"

Don't forget that if you have a list and you drag this function down then the cell references will auto update as you pull them down i.e A1 will become A2 then A3..

If you have lots of start date but the end date will always be the value of call B1 then you can lock that cell reference (Make it absolute) but using Dollar signs so instead of writing B1 you'd put $B$1

Thanks,

Thom

=(DATEDIF(A1,TODAY(),"Y")& " Years, " &DATEDIF(A1,TOD AY(),"YM")& " Months, " &DATEDIF(A1,TOD AY(),"MD")& " Days)

Thanks

It was added around about then so it should work, but you won't get any autosum assistance, you'll have to type it blind. personally, I tend to avoid autosum anyway (once you get into advanced functions it just gets in the way)

thanks,

Thom

Thanks

Put your chosen function into an =if() function like:

=if(CHOSENFUNCTION=CELLCONTAININGENDDATE,CELLCONTAININGENDDATE,CHOSENFUNCTION)

IF the function you choose is equal to the value in your chosen cell then it will return the value of said cell if not, it will keep calculating.

thanks,

thom

I would like to be able to calculate an age (rounded down to years only) that is the difference between a particular date (the date a patient was referred) and their birthdate so that I end up with the age they were when they were referred by their GP. The date of birth is in field C2 and the referral date is in field D2. I'm not very good at Excel so I'm being specific about this so I can just copy/paste your formula. I've tried using FLOOR and ROUNDDOWN but I'm obviously doing something wrong. I can get a value like 7.8856 by entering =(g2-c2)/365 but if I remove the digital places to one, it rounds it up to 8, which I don't want. Can anybody help me, please? :)

Thanks, thom

Could you please clarify what exactly you need to do? Did you want to work out the date but roll it back by 1 day, 2 months and three years? if so, I'd go with method D (Date Difs) to get each one (year, months and days and wrap each datedif within an =sum() and minus the needed difference form each them. Happy to provide an example if you can clarify what exactly you're after :)

Thanks,

Thom

I have then created a different tab within the same worksheet entitled 'Enquiries'. I want to insert a formula in this tab that will automatically copy across from the 'Client Details' tab the whole line of data for all entries that have a Status of 'Enquiry' displayed in column A.

Can anyone please help?

Many thanks, Julie

That's difficult because it may well be a year out without the EXACT age (81.0223 sort of format) as they may well have a birthday in December but you calculate it as at June, meaning it would calculate their age at 81 when in actual fact they're still only 80.

Assuming the age at death is in box A1 and the current date is in B1 (You could replace references to B1 with the =today() function if you'll ony use this ones):

=DATE(YEAR(B1)-A1,MONTH(B1),DAY(B1))

This calculates the given age from the year value of the current date.

Kind regards,

Thom

I have date of births, and have used the DATEDIF formula to work out the Year and Month of each individual at 2 different points in time.

For Example In May I know Joe is 10 Years, 5 Month but he is only achieving as child of 8 Years, 10 Month. So I want to subtract 1 from the other. So I have an answer of how many Year, Month he is behind. Any Suggestions??

Thank you,

David

Please can you copy and paste in the functions you used and the results so that I know the exact format you're working with here?

Thanks

Thom

function is very helpful& the best....... Thnks a lotDatedifis very helpful for me in my office.

Thanks

You wouldn't really be able to get the exact date of birth, unless you knew how old they were exactly i.e. 20 years, 50 days. You could calculate it to year by doing something like =YEAR(TODAY())- A1 assuming their current age was in Cell A1.

Thanks,

Thom

Kindly Help me i am not understand this formula.

Please calculate my date of birth explained me my date of birth 15/09/1988

I'm afraid I don't follow your question. Could you please clarify for me?

Thanks, Thom

Its abig help for me having your tips....

I am an early years teacher and we work in months not years and months.

Can you help?

Kimberley

Datedif would do that for you, Just use =DATEDIF(A1,TOD AY(),"m") Assuming the DOB is in Cell A1.

Thanks,

Thom

How do I convert fx 25102002 into a date and than age?

I'm assuming that would be the 25th October 2002? Is the FX part of the box? If so, I'd start with =right(A1,8) which would give you the last eight digits from cell A1, so if Cell A1 contained "fx 25102002" it would simply return "25102002". Now to convert that 8 digit string into a palatable date, I'd use the =date() function. I've done one for you, you just need to switch the A1 with the cell that contains your function =DATE(RIGHT(A1,4),RIGHT(LEFT(A1,4),2),LEFT(A1,2))

Thanks, Thom

=DATEDIF(E13,TODAY(),"Y") & " Years, " & DATEDIF(E13,TOD AY(),"YM") & " Months, " & DATEDIF(E13,TOD AY(),"MD") & " Days"

Note: When I type =today() in a cell it is correctly listing 11-Mar-15 as today's date.

Also note: The regional settings in my control panel list short date as dd-MMM-yy, so I don't think this would be the problem.

That would be the length of time since Excel's callander started

You're getting that because the cell you're referencing is blank - is you r son's DOB in Cell E13? Because that's the Cell it's calculating from.

Possible fixes:

- Your function contains errors, please see the corrected one below:

=DATEDIF(E13,TODAY(),"Y") & " Years, " & DATEDIF(E13,TOD AY(),"YM") & " Months, " & DATEDIF(E13,TOD AY(),"MD") & " Days"

- You need to use the format option to format it correctly as a date. i.e. to make it read in that format you'll need to go to the 'Custom' option under format and enter:[$-809]dd -mmm-yy;@ Under 'Type'

- If you're just typing it in like that, it probably won't read it as a date, you need to enter it as 11/02/2003

This will give you "12 Years, 1 Months, 1 Days"

Thanks,

Thom

Option B (DATEDIF()) only gives you the years as a number value - did you perhaps mean option D? I've added an IF statement to Option B, so that it only shows the months and yeards if the person is 2 or under:

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

I have added the formula for age that works well. I was able to continue the formula down the entire column which is what I needed. The issue is that a computed "age" appears in each cell despite the fact that I have not filled in a birthdate. ie: everything below the correct calculations in the column reads 115 years as a default. Is there a way to make the age cell blank until a value is placed in the birthdate cell so as not to see ongoing "115's?" Thanks in advance~

Thanks.

=IF((DATEDIF((DATE((YEAR(A2)+(DATEDIF(A2,A1,"y"))),MONTH(A2),DAY(A2))),A1,"d"))=365,(DATEDIF(A2,A1,"y"))+((DATEDIF((DATE((YEAR(A2)+(DATEDIF(A2,A1,"y"))),(MONTH(A2)),(DAY(A2)))),A1,"d")-1)/365),(DATEDIF(A2,A1,"y"))+((DATEDIF((DATE((YEAR(A2)+(DATEDIF(A2,A1,"y"))),(MONTH(A2)),(DAY(A2)))),A1,"d"))/365))

where A2 is the date of birth, and A1 is the current date (which could be replaced with TODAY() also.

Please let me know if there are any flaws in this or simpliar ways to calculate it.

=IF((DATEDIF((DATE((YEAR(C3)+(DATEDIF(C3,C2,"y"))),MONTH(C3),DAY(C3))),C2,"d"))=365,(DATEDIF(C3,C2,"y"))+((DATEDIF((DATE((YEAR(C3)+(DATEDIF(C3,C2,"y"))),(MONTH(C3)),(DAY(C3)))),C2,"d")-1)/365),(DATEDIF(C3,C2,"y"))+((DATEDIF((DATE((YEAR(C3)+(DATEDIF(C3,C2,"y"))),(MONTH(C3)),(DAY(C3)))),C2,"d"))/365))

C2 = Current Date - could use TODAY()

C3 = DOB

If that's not what you are looking for, can you explain what it is you need in more detail?

Can you provide cell references and what data is entered in them along with your formula and that cell reference?

First thought is you should format your result as a number instead of Date. That might be your issue.

Really worked well! If you want the age to display as a single number on Method B - just format the cell to 'Number' with no decimal points - it works!! Hurrah!!

Retirement age is 60 years and last date of each month and the formula works, but in our case if an employee's date of birth falls on 1st of any month then he/she will retire on the previous months last date. (eg. employee 1 DOB is 03/01/1960 then output needed is 28-02-2020 and employee 2 DOB is 03/02/1960 then 31-03-2020)

Is there any easy way to make groupings on all that are the age of 10 etc.

I have automated the document as we will have more people in all the time so I need automated groupings as well.

Any suggestions?

/Jacob

02/02/1966

second february nineteen sixty six

Any comment anyone?

Work great for me thank you!!!

I have to enter it one by one.

=TEXT(TODAY()-A2,"YY")&" Years, "&TEXT(TODAY()- A2,"mm")&" Months, "&TEXT(TODAY()- A2,"dd")&" Days"

use this simple formula and get answer as below :

26 Years, 03 Months, 15 Days

Regards,

KT

Jan 810 names and amounts to invoive as at left.

Feb 1200 For month Jan

Mar 850 Invoie Amount 810

Apr 930

May 1250 The formula entered in the cell above here

Jun 1300 framed above is

Jul 1100

Aug 820 =VLOOKUP(G3,$B$2:$C$13,2,FALSE)

Sep 750

Oct 875

Nov 980

Dec 1450

Cedric, please confirm this answers your query

Example:

John Smith was born on 6/5/1932. 1932 is a leap year. Compute John Smith's age on 6/5/2002. We would say John Smith is 70 years old on his 70th birthday, 6/5/2002. However, because YEARFRAC(DATE(1 932,6,5),DATE(2 002,6,5), 1) computes to 69.99795627, adding ROUNDDOWN computes to 69. In fact, John is 70. I'm not sure if this is the best solution, but I've added a precise day to the computation, which I assume shouldn't affect other calculations because it is shorter than the formula assumes a day to be.

(1/365.2422) is a precise day when accounting for leap years

My adjusted YEARFRAC is:

YEARFRAC(DATE(1 932,6,5),DATE(2 002,6,5), 1)+(1/365.2422) which computes to 70.00069418 and when combined with ROUNDDOWN, gives 70.

Putting it all together according to the references in the article:

=ROUNDDOWN(YEARFRAC(A2, TODAY(), 1)+(1/365.2422) , 0)

Very helpful....Now I knew how to convert date in text and count years.