Pearson Correlation Coefficient (r) Calculator

Calculate linear correlation coefficient r (-1 ≤ r ≤ 1) between two continuous variables.

How It Works & Processing Standards

Enter values above to calculate results automatically. Check each input field for guidance and units.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 100,000 characters

Pearson Correlation Coefficient (r) Calculator is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use Pearson Correlation Coefficient (r) Calculator

  1. 1
    Enter Variable XType values for X.
  2. 2
    Enter Variable YType paired values for Y.
  3. 3
    Get Correlation (r)Inspect calculated r value.

Common Use Cases

  • Analyzing correlation between advertising spend and sales volume
  • Studying relationship between student study hours and test results
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