Pearson's r Correlation Calculator
Calculate the linear correlation between two continuous variables
About Pearson's r
Pearson's correlation coefficient measures the strength and direction of linear relationship.
Range: -1 (perfect negative) to +1 (perfect positive), 0 = no correlation
Interpretation:
- |r| < 0.1: Negligible
- 0.1 ≤ |r| < 0.3: Weak
- 0.3 ≤ |r| < 0.5: Moderate
- 0.5 ≤ |r| < 0.7: Strong
- |r| ≥ 0.7: Very Strong
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.