What is the Pearson Correlation Calculator?
Calculate Pearson’s r from paired numeric values. ITS Research Solution keeps the interactive tool above the explanation so you can calculate first and then review the method used.
Formula or method
r = covariance(X,Y) / (SDx × SDy).
How to use this tool
Enter the requested values using consistent units, run the calculation and review the main result plus any supporting values. An r near +1 indicates a strong positive linear association.
Interpretation and limitations
Correlation describes linear association and does not establish causation. Always check source data, units, rounding and discipline-specific requirements before using a result in assessed, published, regulated or high-stakes work.
Frequently asked questions
How is this result calculated?
r = covariance(X,Y) / (SDx u00d7 SDy).
Can I use this result in formal academic or research work?
Use it as a transparent calculation aid, then verify the assumptions, units, rounding and any institution-, journal- or field-specific requirements before formal use.