How to check if there are duplicates in Google Sheets

IF is a built-in Google Sheets function. Type =IF( in a cell and follow the argument hints, or open the formula help from the function name. Start with a small example range, confirm the result, then expand. See the linked formula guide on this page for syntax and examples related to check if there are duplicates.

Steps

  1. 1

    Click an empty cell and type =IF(.

  2. 2

    Fill arguments using the on-screen helper.

  3. 3

    Press Enter and check a known expected result.

  4. 4

    Widen ranges or add IFERROR once the logic is correct.

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