ISNUMBER

Returns TRUE if the given value is a number or a logical value, and FALSE otherwise.

Syntax

ISNUMBER(value)

value: The value to test. E.g. 12

Examples

Formula	Result
=ISNUMBER(12)	TRUE
=ISNUMBER(A3)	FALSE
=ISNUMBER(A4)	FALSE

Get a hands-on experience of the function in the embedded range below.

Possible Errors

Errors	Meaning
#N/A!	The function could not find the value it was asked to look for. Commonly occurs in VLOOKUP and similar functions.
#NAME!	The function name is incorrect or invalid. The given defined name (if any) is invalid. There is a typo in the defined name used in the function. Double quotes are missing for text values in the function. Colon missing in a cell range reference.
#VALUE!	The given argument's data type is incorrect or invalid. For example, the function =DATE(A1:A3) will return a #VALUE error when a text value is present in the range.
#REF!	The given cell reference is incorrect or invalid. This error may occur when a cell/range has been deleted, moved, or pasted over.

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