In a previous post, I explored how to ignore blank cells when using the QUERY function in Google Sheets, which had its own distinct way of removing blank cells from the data capture.
But how do you ignore blank cells in your spreadsheet when you’re not in a
QUERY
function? What if you’re in one of the many different
IF
functions such as
IF
,
IFS
,
SUMIF
,
SUMIFS
,
COUNTIF
,
COUNTIFS
,
AVERAGEIF
,
AVERAGEIFS
,
MAXIFS
,
MINIFS
(etc). How do you write a condition that checks if a cell is blank in those functions?
Ignore Blank Cells With Ranges
To ignore blank cells with functions operating on a criteria_range and a corresponding criterion is to write the condition
"<>"
in the criterion.
For example, in the
AVERAGEIF
function, which uses a
criteria_range
as its first parameter and a corresponding
criterion
as its second parameter to exclude calculating the average of a range if a criteria range cell is blank, then use the condition
"<>"
in the criterion as follows:
A  B  C  

1  6  Confirmed  
2  9  
3  10  Pending  
4  5  Confirmed 
7
=AVERAGEIF(B1:B4,"<>",A1:A4) 
If we wanted to reverse the condition, such that cells that
do
include blank cells are used in our calculations, then we would remove the
<>
characters in our criterion parameter.
Using the same formula above, if we wanted the average of values where the criterion is based on blank cells, then we would write:
A  B  C  

1  6  Confirmed  
2  9  
3  10  Pending  
4  5  Confirmed 
9
=AVERAGEIF(B1:B4,"",A1:A4) 
Using the value "<>" to ignore blank cells on a range is handy, but what if we wanted to use the same formula over an array of cells where we are checking the condition on one cell instead of a range of cells.
Ignoring Blank Cells – IF Formula
There are several ways to check if a cell is blank. Here is a shortlist of operators and functions that can assist:
IF
Function
First Parameter 
Example Usage 

A1<>""

=IF(A1<>"", TRUE, FALSE)

LEN(A1) 
=IF(LEN(A1), TRUE, FALSE)

ISBLANK(A1)

=IF(ISBLANK(A1), TRUE, FALSE)

NOT(ISBLANK(A1))

=IF(NOT(ISBLANK(A1)), TRUE, FALSE)

IF
function
The first and last examples in the table above do the same thing: they check if A1 is NOT blank/empty .
The second example checks if the cell contains a length. If there is a length, then it is assumed there is something within the cell, however, you might want to read this post as some characters do not have a length !
The third example is a simple function that determines if the cell is blank.
Warning! Don’t Do This
Do not use the condition
=IF(A1, TRUE, FALSE)
to test if a cell
is blank
, as there are falselike values that could be contained in the cell being referenced which would return
FALSE
.
In the table below we test how each formula goes with checking if the cell is not blank . Column A contains the falselike values, Column B show the formula and the result:
A  B  

1 
FALSE
=IF(A1, TRUE, FALSE)


2  FALSE 
FALSE
=IF(A2, TRUE, FALSE)

3  0 
FALSE
=IF(A3, TRUE, FALSE)

As you can see from the above spreadsheet, using the simple formula
=IF(cell, TRUE, FALSE)
does provide some incorrect and problematic results if the assumption behind the formula is
to just check if something exists in the cell
.
Therefore, because this formula can be misleading don’t use it when checking if there is a value in the cell. Use the alternative formulas such as
LEN(cell)
or
ISBLANK(cell)
.
A  B  

1 
TRUE
=IF(ISBLANK(A1), TRUE, FALSE)


2  FALSE 
TRUE
=IF(LEN(A2), TRUE, FALSE)

3  0 
TRUE
=IF(LEN(A3), TRUE, FALSE)

Summary
When checking for blank cells in your IF formulas use any of the following conditions in your criterion parameter:

cell<>""

LEN(cell)

ISBLANK(cell)
If your criterion is based on a range and you are using one of the multiple formulas containing
IF
, such as
SUMIF
,
SUMIFS
,
AVERAGEIF
,
AVERAGEIFS
,
COUNTIF
,
COUNTIFS
,
MAXIFS
,
MINIFS
(etc) then to ignore cells that are blank use the criterion
"<>"
.
If you’re using the QUERY function in Google Sheets we have a similar article on how to ignore blank cells too .