How do you check if a cell is empty or blank in Google Sheets?
There is a handy function called ISBLANK
which enables you to check if a cell is empty.
What Does Empty Really Mean?
In Google Sheets there are two ways of having an empty cell, one way is by defining an empty string ""
and another way is by having nothing in that cell.
To check that a cell meets these criteria of being “empty” we use the ISBLANK
function, like so:
A  B  

1  Yes empty=IF(ISBLANK(A1),"Yes empty","No not empty")  
2  =IF(TRUE,"",)  Yes empty

3  FALSE  No not empty=IF(ISBLANK(A3), "Yes empty", "No not empty") 
ISBLANK
Formula
The ISBLANK
formula contains only one parameter and this would point to the cell being checked if it is empty.
ISBLANK(cell)
In the above example we checked the value of the cells contained in column A, where column A contained the following results:
CELL A1
contained anull
value – this is deemed to be an empty cell (as the outcome of cell B1 showed)CELL A2
contained an empty string – this also is deemed to be an empty cell.CELL A3
containedFALSE
– but as this is something this cell is deemed not to be empty.
How To Check If Cell Is NOT Empty
If I wanted to check if a cell was NOT empty I would pass the ISBLANK
formula into the NOT
formula, like so:
NOT(ISBLANK(A2))
Here are the same examples with the ISBLANK
formula wrapped with NOT
:
A  B  

1  TRUE  TRUE=NOT(ISBLANK(A1)) 
2  FALSE=NOT(ISBLANK(A2)) 
NOT(ISBLANK(cell))
How To Check If Range Of Cells Are Empty
What if I wanted to broaden my check on whether one cell is empty, to whether a range of cells is empty.
Thankfully the ISBLANK
formula allows for a range of values to be passed into its only parameter and with the range entered it can check if the result is blank.
For example:
A  B  

1  +A'+A  
2  TRUE=IF(ISBLANK(A1:B1),TRUE,FALSE) 
How To Check If Multiple Ranges Are Empty
Checking one contiguous range is fairly straightforward, as demonstrated above, but what if there are multiple ranges?
We could combine all the ranges into separate ISBLANK calls and wrapping these in an AND function, something like so:
=AND(ISBLANK(range1), ISBLANK(range2), ...)
This is good if there are only a handful of ranges and they’re of varying sizes.
A  B  C  

1  
2  TRUE  TRUE=AND(ISBLANK(A1:C1), ISBLANK(B2)) 
Cell Is Empty But ISBLANK
Says It Isn’t??
There may be times where the result of the ISBLANK
formula doesn’t appear to give the right result, why is that?
First, check if there’s something in the cell by running the following function: LEN(cell)
This will tell you if there actually is something in the cell that will confirm the result from ISBLANK
.
Now that you have a value within this cell it could be one of two things:
 The cell contains spaces or carriage returns; and/or
 The font colour of the cell is the same as that of the cells’ background.
A  B  C  

1  =CHAR(32)  1=LEN(A1)  FALSE=ISBLANK(A1) 
2  =CHAR(13)  1=LEN(A2)  FALSE=ISBLANK(A2) 
3  =CHAR(10)  1=LEN(A3)  FALSE=ISBLANK(A3) 
4  =CHAR(27)  0=LEN(A4)  FALSE=ISBLANK(A4) 
To get the character in a cell use the CODE
on the cell to display what the ASCII code is for the contents in that cell.
Summary
In this article, we looked at how to find out whether a cell or range contained (or didn’t contain) blanks.
The easiest way to check if a cell is empty is to use the ISBLANK
function and to pass a cell or range into the sole parameter of the formula.