ISBLANK Function

Checks whether a cell value is blank
Sample Usage
IF(ISBLANK([Task Name]1), "Cell is blank", "Cell isn't blank")
  • value
  • value
    The value, typically within a cell, to check.
Usage Notes
  • This function is typically used inside of another function, for example: IF, COUNTIF, or SUMIF.

This example references the following sheet information (some fields have been left intentionally blank):

 Clothing ItemUnits SoldIn Stock?Status% Complete
1T-Shirt trueGreen100%

Given the table above, here are some examples of using ISBLANK in a sheet:

=IF(ISBLANK([Units Sold]1), "Blank", "Not blank")Returns the string Blank if row 1 of the Units Sold column contains no value. Otherwise, it returns Not blank.Blank
=IF(NOT(ISBLANK([Units Sold]2)), "Gained revenue","No Sale")Returns the string Gained revenue if row 2 of the Units Sold column contains a value, and No sale if the field is blankGained revenue
=IF(ISBLANK([% Complete]3), "Red")Returns Red if row 3 of the % Complete column is blankRed

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