Statistical

PEARSON Function in Excel

Returns the Pearson product moment correlation coefficient.

Syntax

  • =PEARSON(array1, array2)

Arguments

  • array1 (required): First data set
  • array2 (required): Second data set

Examples

  • =PEARSON(A1:A10, B1:B10) - Correlation coefficient - Result: r value

PEARSON for data analysis

  • Confirm whether you need entire columns, filtered subsets, or distinct values.
  • Use [COUNTIFS](/functions/countifs/) and [SUMIFS](/functions/sumifs/) for multi-criteria metrics.
  • Pivot tables complement single-cell statistical formulas for exploration.

Common errors

  • Arrays must be same size

Use cases

  • Correlation analysis
  • Relationship strength
  • Data analysis

Frequently asked questions

  • What is PEARSON function in Excel? PEARSON calculates the Pearson correlation coefficient (r), measuring the linear relationship between two variables. Values range from -1 (perfect negative) to +1 (perfect positive), with 0 indicating no linear relationship. It's identical to CORREL.
  • How do I interpret PEARSON results? r near +1: strong positive correlation (both increase together). r near -1: strong negative correlation (one increases as other decreases). r near 0: weak/no linear relationship. Common thresholds: |r| > 0.7 strong, 0.4-0.7 moderate, < 0.4 weak.
  • What's the difference between PEARSON and CORREL? They're mathematically identical and return the same result. PEARSON is named after Karl Pearson who developed the formula. Use whichever name you prefer - CORREL is more commonly used in Excel documentation.

Editorial review

  • Reviewed by Excel.Directory Editorial Team. Updated May 2026.