ISFORMULA Google Sheet Formula

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ISFORMULA Formula Syntax

=ISFORMULA(A1)

Example Use Case

Checking if a cell contains a formula

Understanding the ISFORMULA Formula

The ISFORMULA function in Excel checks whether a cell contains a formula, returning TRUE if a formula is present and FALSE otherwise. It's a spreadsheet analysis tool for worksheet auditing—like identifying which cells contain calculations versus static data.

ISFORMULA(A1) evaluates cell A1 and returns TRUE if it contains any formula, regardless of the formula's result. It takes a reference argument and performs a formula presence check—perfect for understanding spreadsheet structure, auditing calculations, or creating documentation about worksheet design.

Why Use ISFORMULA?

ISFORMULA enables formula detection—think spreadsheet auditing or selective protection. Its ability to distinguish between formulas and values makes it valuable for documenting complex workbooks, identifying cells that should be protected from editing, or ensuring that critical calculations aren't accidentally overwritten with static values.

Example with Sample Data

Cell Content	Formula	Result
=SUM(B1:B10)	=ISFORMULA(A1)	TRUE
Static text "Total"	=ISFORMULA(A2)	FALSE
Number 42	=ISFORMULA(A3)	FALSE
=TODAY()	=ISFORMULA(A4)	TRUE

ISFORMULA detects calculation cells: TRUE for =SUM(B1:B10) or =TODAY(), FALSE for static text or values. When used with conditional formatting, it can highlight all formula cells for documentation. It's a formula identifier.