Checks whether a value is an error. Learn more
ISERROR is a function in Google Sheets that checks whether a value or expression results in an error. The function returns TRUE if the value or expression is an error or FALSE if it is not an error.
For example, if you enter a formula in a cell that results in an error such as #DIV/0!, you can use ISERROR function to check if the cell contains an error:
=ISERROR(A1)
This formula will return TRUE if cell A1 contains an error, and FALSE if it does not contain an error.
The ISERROR function can be useful in combination with other functions such as IFERROR and IF to handle errors in your formulas and calculations.