Excel Formula Errors – Understand and Debug Them

Share

Facebook
Twitter
LinkedIn

Excel formula error checklist and how to fix excel errorsImagine carefully creating a workbook with several calculations and formulas only see errors. What to do when you get an Excel formula error? Of course, you can shake your head and ask, “Why, why would you do that?”, but that will not help.

What to do when you have an Excel error like #NA or #REF

So in this article let’s learn how to fix Excel formula error. Those annoying #SOMETHING!s that you see when your excel formulas have something wrong with them.

Excel Formula Error Checklist

Use this checklist to quickly understand common formula errors, what they mean, when you would see them and how to fix them. Read on to know more about the errors.

ErrorWhat it means?Most common reasonHow to fix it?
#N/ANot ApplicableWhen VLLOKUP can't find what you wantMake sure your list has the value you are looking for. Use IFERROR or IFNA to fix
#DIV/0!Divide by ZeroDenominator is zeroUse IF formula to safe divide
#NAME?Could not find the nameSpelling mistake / typoDouble check your formula and fix the error
#########Could not display or formatCell too smallAdjust column width
#VALUE!Invalid valueConverting non-dates or numbersMake sure your dates are correctly formatted
#REF!Reference missingWhen you delete a row / column / cellCheck cell dependancies before deleting
#NUM!Invalid numberNumber too high or too lowCheck your calculation
#NULL!Missing or null valueReference points to nothingSee if your references are right

#N/A Formula Error

This is one of the most frequent excel formula error you see while using vlookup formula. The N/A error is shown when some data is missing, or inappropriate arguments are passed to the lookup functions (vlookup, hlookup etc.) of if the list is not sorted and you are trying to lookup using sort option. You can also generate a #N/A error by writing =NA() in a cell.

How to fix #N/A error?

Make sure you wrap the lookup functions with some error handling mechanism. For eg. if you are not sure the value you are looking is available, you can write something like =IFERROR(VLOOKUP(…), “Value not found”). This will print “value not found” whenever the vlookup returns any error (including #N/A)

Related: Learn more about IFERROR formula

#DIV/0! Formula Error

This is the easiest of all. When you divide something with 0, you see this error. For eg. a cell with the formula =23/0 would return in this error.

How to fix #DIV/0 error?

Simple, use IF formula to safe divide, like this:

=IF(A2=0, “”, A1/A2)

 

#NAME? Formula Error

The most common reason why you see this error is because you misspelled a formula or table or named range. For eg. if you write =summa(a1:a10) in a cell, it would return #NAME? error. There are few other reasons why this can happen. If you forget to close a text in double quotes or omit the range operator :. All these examples should return #NAME? error. =sum(range1, UNDEFIED_RANGE_NAME), =sum(a1a10)

How to fix #NAME? Error?

  • Make sure you have mentioned the correct formula name. Use auto-complete when typing formulas. This way, when you type formulas or use names / structural references, you will not make any mistakes.
  • Make sure you have defined all the tables and named ranges you are using in the formula.
  • Make sure any user defined functions you are using are properly installed.
  • Double check the ranges and string parameters in your formulas.

###### Error

You see a cell full of # symbols when the contents cannot fit in the cell. For eg. a long number like 2339432094394 entered in a small cell will show ####s. Also, you see the ###### when you format negative numbers as dates.

How to fix the ###### error?

Simple, adjust the column width. And if the error is due to negative dates, make them positive.

#VALUE! Excel Formula Error

Value error is shown when you use text parameters to a function that accepts numbers. For eg. the formula =SUM(“ab”,”cd”) returns #VALUE! error.

How to fix the #VALUE! error?

Make sure your formula parameters have correct data types. If you are using functions that work on numbers (like sum, sumproduct etc.) then the parameters should be numbers.

#REF!  Formula Error

This is one of the most common error messages you see when you fiddle with a worksheet full of formulas. You get #REF! Excel formula error when one of the formula parameters is pointing to an invalid range. This can happen because you deleted the cells. For eg. try to write a sum forumla like =SUM(A1:A10, B1:B10, C1:C10) and then delete the column C. Immediately the sum formula returns #REF! error.

How to fix the #REF! error?

First press ctrl+Z and undo the actions you have performed. And then rethink if there is a better way to write the formula or perform the action (deleting cells).

#NUM! Excel Error

This is number error that you see when your formula returns a value bigger than what excel can represent. You will also get this error if you are using iterative functions like IRR and the function cannot find any result. For eg. the formula =4389^7E+37 returns a #NUM! error.

How to fix #NUM! error?

Simple, make your numbers smaller or provide right starting values to your iterative formulas.

#NULL! Formula Error

This is rare error. When you use incorrect range operators often you get this error. For eg. the formula =SUM(D30:D32 C31:C33) returns a #NULL! error because there is no overlap between range 1 and range2.

How to fix the #NULL! error?

Make sure you have mentioned the ranges properly.

Formula not working – showing as text?

If you don’t see any error, but instead of seeing the result, all you see is your formula (like below), then check out Formulas not working page for information how to fix the problem.

excel formula showing as text - What to do when all you see is the formula, not result

Further Reading on Excel Formula Debugging

Formula Debugging using F9 Key

Learn to work with Circular References

Understand the difference between absolute and relative references

How to work with tables & structural references

Detect errors in your formulas [Office.com]

How to use new ERROR.TYPE formula to work with errors

Tell me how you debug formulas? What is the most common error you get?
What is the strangest and most confusing error you have seen? Please share in the comments so we can all have a laugh and find a way to fix the problem.

Facebook
Twitter
LinkedIn

Share this tip with your colleagues

Excel and Power BI tips - Chandoo.org Newsletter

Get FREE Excel + Power BI Tips

Simple, fun and useful emails, once per week.

Learn & be awesome.

Welcome to Chandoo.org

Thank you so much for visiting. My aim is to make you awesome in Excel & Power BI. I do this by sharing videos, tips, examples and downloads on this website. There are more than 1,000 pages with all things Excel, Power BI, Dashboards & VBA here. Go ahead and spend few minutes to be AWESOME.

Read my storyFREE Excel tips book

Overall I learned a lot and I thought you did a great job of explaining how to do things. This will definitely elevate my reporting in the future.
Rebekah S
Reporting Analyst
Excel formula list - 100+ examples and howto guide for you

From simple to complex, there is a formula for every occasion. Check out the list now.

Calendars, invoices, trackers and much more. All free, fun and fantastic.

Advanced Pivot Table tricks

Power Query, Data model, DAX, Filters, Slicers, Conditional formats and beautiful charts. It's all here.

Still on fence about Power BI? In this getting started guide, learn what is Power BI, how to get it and how to create your first report from scratch.

32 Responses to “More than 3 Conditional Formats in Excel”

  1. m&a in recessionary market says:

    Dude,

    Long time... whts up , I see that urs is the only business which is posting a "Excel" lent growth in this recessionary market....

    Still alive ... so you will be able to reach me if make an attempt... 🙂

  2. James says:

    V E R Y N I C E !!!!

  3. Lincoln says:

    Hi Chandoo.

    When I use your macro in my file, I keep getting a Compile Error because the "cell" variable is not defined.

    Any suggestions?

  4. Chandoo says:

    @Lincoln: Did you have "option explicit" on?

    I am sorry, I didn't define the cell variable.

    you can add this line to the code just below the line "dim i"
    dim cell

    Let me know if you still get this error...

  5. Lincoln says:

    Ah. I've simply declared cell as a range.
    All good now

    Noob at work.

    Thanks for the article. Very helpful. 🙂

  6. Paul says:

    very, very helpful. I didn't know what "define named ranges" meant. one of my colleagues figured it out. I suggest you add the instruction "go to menu - insert/name/define and then make sure the cells at the bottom of the box change to reflect new values if you redefine the range." thanks.

  7. Jahabar says:

    Quite Intresting. If anyone could help. I am trying to do something like this but i want to define values and colours of the value in a range of cells ( Similiar) but i want the other cells to change colour when the value is same as the range defined. ANy help. I want instantaneous( Like conditional formatting) not like running macro.

  8. Chandoo says:

    @Jahabar: Welcome to PHD and thanks for the comments.

    If your source range and target range have same dimensions and source range has 4 different formats (conditional formatting limitation, unless you are using excel 2007) you can do this. If you have more than 4 formats then you may have to use VBA (and create an event like worksheet_change and monitor the range).

    Let me know if you come across a simple non-vba solution for this. 🙂

  9. serdarb says:

    very nice post...

  10. Stružák says:

    May I suggest a little modification of the code?

    Adding "Application.ScreenUpdating = False" at the beggining of the macro and "Application.ScreenUpdating = True" at the end speeds up significantly the whole procedure. As well as omitting "Operation:=xlNone, SkipBlanks:=False, Transpose:=False".

    Not a big deal in this example, but when formatting a larger range of cells, the difference is marked. I've tried to format the number 1457 of cells and the formatting was done 11 seconds faster. :-O

  11. [...] you can overcome the conditional formatting limitation using VBA macros (again, if you are new to excel, you may want to wait few weeks before plunging in to [...]

  12. Hi Chandoo

    Thanks for this macro. I have done few changes to this macro to suit my needs. I had removed the defined names data2use and conditions2use to ActiveWindow.RangeSelection.Address

    This way I can select the cells that require conditional formatting and then run the macro.

    Kind Regards,
    Vasanth

  13. asm says:

    Chandoo, I am using 2007. I noticed the conditional formatting options are different - and they have some built in funtictions for stop light displays, and other dashboard type elements. My question is this, I need to display more colors in the stop light than the standard 3. The World Health Org (WHO) has a Pandemic Flu alert level between 0-6, so i wanted to drive a sharepoint dashboard using excel based on 7 distinct levels. Suggestions?

    • Chandoo says:

      @ASM: very good idea. you can use font based symbols instead of excel traffic light icons to achieve this. the character "=" becomes a small circle when you change the font to "webdings". So you just need to insert a bunch of = signs and use conditional formatting to change the font color. If you need to combine numbers with symbols, then you can use 2 columns instead of one and format them accordingly. Let me know if you need some more help with this.

      Also, if possible, share with us your dashboard when it is ready.

  14. [...] Once we calculate values for all team members using the above formula, we can apply conditional formatting to make the heat map. In Excel 2007, this is one step. In earlier versions of excel, you need to specify 3 conditions to make the heatmap look hot enough or use a macro to get over the 3 conditional formats limitation. [...]

  15. Pitichat says:

    Chandoo,

    Why do you use the "conditions2use" since you can change the VBA and replace "conditions2use" with "data2use" and you won't have to create a zone for conditional formating equal to the data zone.

    The Data will be formated according the "formats2use". Just one thing, if you plan to have some "0" on your data zone, they will be formated like the first cell above your "formats2use" (the green cell with "Formats" inside in your exemple".
    That's why you should leave a white empty cell above the first cell of the "formats2use" zone.

    Regards,
    Pitichat

  16. Justin B says:

    Seeing as no one has posted what they actually might use something like this for here's my 2cents;
    I used the same concepts to build a heatmap of a casino gaming floor, with each populated cell representing a gaming machine (Slot Machine), some simple metric bucketing to determine different shades for the cells, user selectable colours, ability to pick a 'machine' (click on a cell) and repaint the 'floor' showing only machines with similar charateristics, select a value range and repaint the 'floor' showing only the 'machines' within the value range. Users could switch between metrics and repaint the the floor.

    It took a while to put together, but once in use was rolled out to four casinos and used for 4 years. It provided a portable (i.e. no custom software), easy to understand way to manage product from individual machine to groups / classes of product and made it very easy to see how products were performing in geographic relation to each other (something that tables & graphs can't easily do)
    Needless to say it "wowed" many people who only saw Excel as a tool for managing numbers and table based reports
    Being excel just about any user could maintain spreadsheet.

  17. Paul Chapple says:

    @ Justin B - Hey Justin, that counds AWESOME! Can I get a copy of the casino tracker, I work within a similar industry and would love to see how you've constructed it.

    Also, from using this heatmap, I think I'm getting confused. To make the map change color, I thought you had to change the DATA2USE cells, but I see it only changes if you change the vales of thew cells within the CONDITIONS2USE cells. Am I thinking this wrong?????

    Thanks all, this is REALLY making my life easier!!

  18. Rajeev says:

    Hi Dude,

    Thanks for this very useful macro. That was very helpful.

    Kepp up the good work.

    Cheers.

  19. Wagner says:

    Explanation like yours is so important to everyone that want to learn more and more in Excel. Thanks a lot. You are the man ! 🙂

  20. Lee says:

    Chandoo,

    If I wanted to replace the numbers 1-9 with text A-I, what would I need to do to the macro to make it work correctly?

    Thanks!

    • Hui... says:

      @Lee
      If the numbers are alone and not part of larger numbers >10 or with text you can simply use this formula
      =CHAR(A1+64)
      Change A1 to your cell
      Copy Down/Across as required
      Then select the new cells and copy/paste as Values over themselves.

  21. Cathy says:

    I'm trying to do a drop down list that will allow me to select a color and when I select that color it will change my cell to that color. i cannot use contion formating because I have 5 colors. Can you help me with this?
    thanks

  22. Anurag says:

    This tool was great. Can you please suggest a way to include conditions like if value in a cell lies in a range color some other cell red.

  23. CCC says:

    What do I need to change in the programing if I have a mix of numbers and letters.  Example; 5003, 2B01, W005, 1020.  I think the problem is the CInt code but I'm not sure.

  24. Bob says:

    EXCELlent - was able to use your macro with no problems.  Found that modifying it to use the DATA2USE range achived the same result as using the condition2use range.  If the two ranges were equal, your way allows the data range to have completely different values and still have the same color format at the end. 
     
    My data is a little different
    I have an irregular shaped building with students in it.
    I have a list of students assigned to the rooms with the courses they are on
    and a color code for the courses
    would there be a way of using indirect to translate the student names to color code the rooms to what courses they are on?
     

  25. [...] hi Check below link More than 3 Conditional Formats in Microsoft Excel - How to? | Chandoo.org - Learn Microsoft Excel O... [...]

  26. Graham Hartell says:

    The ability to conditional format a range of cells based on criteria in a different, but matching for size, range of cells is exactly what I've been looking for. Unfortunately the macro falls over at the line conditions (i) = CInt (cell.value). I have specified the 3 rangenames, working in excel 2003 but cannot get it to work. Any ideas. I've checked rangenames several times (0-16 being used) but no luck. Thanks

  27. Sebastian says:

    Hello you also can use this code to force ur worksheet to run with more then on condition.
    in this case the condition = case like in example if u want to format something between of the range 0 to 100 for a color
    Set I = Intersect(Target, Range("B2:B8")) <-- thatch the rage u want to work with just set it up for range of cell u want to use to format

    the second formula will show u Interior color nr index just time it and when u format the cell with a color it will show nr in the cell

    enjoy

    Private Sub Worksheet_Change(ByVal Target As Range)
    Set I = Intersect(Target, Range("B2:B8"))
    If Not I Is Nothing Then
    Select Case Target
    Case 0 To 100: NewColor = 37 ' light blue
    Case 101 To 200: NewColor = 46 ' orange
    Case 201 To 300: NewColor = 12 ' dark yellow
    Case 301 To 400: NewColor = 10 ' green
    Case 401 To 600: NewColor = 3 ' red
    Case 601 To 1000: NewColor = 20 ' lighter blue
    End Select
    Target.Interior.ColorIndex = NewColor
    End If
    End Sub

    Private Sub Worksheet_SelectionChange(ByVal Target As Range)
    Range("F1:F1") = Range("F1:F1").Interior.ColorIndex
    End Sub

  28. Tom says:

    Hi Chandoo,

    I tried to add the "More than 3 conditional formats for Excel" VBA macro
    to my Excel 2008 for Mac and it didn't work. Would this VBA macro work
    with Excel 2011 for Mac? Does it have to be a certain version: Student,
    Home & Office, or Standard?

    Thanks for your help.
    Tom

Leave a Reply