How to find duplicates in Google Sheets


Managing data efficiently is crucial in a digital world where information is abundant. Google Sheets, a widely used spreadsheet application, offers various tools to identify and handle duplicate data. This article provides a step-by-step guide to finding duplicates in Google Sheets, helping you clean and organize your data effectively.

Understanding Duplicates in Data

  • What Are Duplicates?: Duplicates in Google Sheets refer to repeated data points, whether they are numbers, text, or entire rows/columns.
  • Impact on Data Integrity: Duplicate data can lead to inaccuracies in analysis and reporting, making it essential to identify and resolve these issues.

Method 1: Using Conditional Formatting

  1. Select Your Data Range: Click and drag to select the cells you want to check for duplicates.
  2. Access Conditional Formatting:
    • Go to the ‘Format’ menu.
    • Select ‘Conditional formatting’.
  3. Set Up the Rule:
    • Under the ‘Format cells if’ drop-down, select ‘Custom formula is’.
    • Enter the formula: =COUNTIF(A:A, A1)>1 (Adjust the range based on your selected data).
    • Set a format style to highlight duplicates.
  4. Apply and Review: Click ‘Done’ to apply the rule. Duplicates will be highlighted in your chosen format.

Method 2: Using the ‘Unique’ Function

  1. Identify Unique Values: Use the =UNIQUE(range) function in a new cell or sheet to list only unique values from the selected range.
  2. Compare Lists: Manually compare the original list to the unique list to identify duplicates.

Method 3: Pivot Tables for Large Datasets

  1. Create a Pivot Table:
    • Select your data range.
    • Go to ‘Data’ and select ‘Pivot table’.
  2. Set Rows and Values:
    • In the Pivot Table editor, add the column you’re checking for duplicates to the ‘Rows’ section.
    • Add the same column to the ‘Values’ section and set it to ‘COUNTA’.
  3. Analyze the Pivot Table: Look for any count greater than 1, indicating duplicates.

Additional Tips

  • Regular Checks: Incorporate duplicate checks into your regular data management routine.
  • Data Validation: Use data validation rules to prevent entering duplicates in the first place.


Identifying and removing duplicates is a crucial step in data management in Google Sheets. Whether you choose conditional formatting, the UNIQUE function, or pivot tables, each method offers a way to ensure the accuracy and cleanliness of your data. Regular monitoring and preventive measures can further enhance the integrity of your datasets.

Leave a Reply

Ads Blocker Image Powered by Code Help Pro

Ads Blocker Detected!!!

We have detected that you are using extensions to block ads. Please support us by disabling these ads blocker.

Powered By
100% Free SEO Tools - Tool Kits PRO