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.

Error What it means? Most common reason How to fix it?
#N/A Not Applicable When VLOOKUP can’t find what you want Make sure your list has the value you are looking for. Use IFERROR or IFNA to fix
#DIV/0! Divide by Zero Denominator is zero Use IF formula to safe divide
#NAME? Could not find the name Spelling mistake / typo Double check your formula and fix the error
######### Could not display or format Cell too small Adjust column width
#VALUE! Invalid value Converting non-dates or numbers Make sure your dates are correctly formatted
#REF! Reference missing When you delete a row / column / cell Check cell dependancies before deleting
#NUM! Invalid number Number too high or too low Check your calculation
#NULL! Missing or null value Reference points to nothing See 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.