Correlation Calculator
Calculate Pearson correlation coefficient
About Correlation
The Pearson correlation coefficient (r) measures the linear relationship between two variables. It ranges from -1 to +1, where:
- +1: Perfect positive correlation
- 0: No linear correlation
- -1: Perfect negative correlation
Frequently Asked Questions
What does the Correlation Calculator do?
Calculate correlation instantly with this free online calculator. Useful for general tasks. Accurate results in your browser. No signup required. Enter your values above to see results instantly in your browser. This page is part of Try To Calculator's free online calculator collection.
Is the Correlation Calculator free?
Yes. Try To Calculator tools are free to use and do not require an account for this page.
Are my inputs sent to your servers?
No. Calculations run locally in your browser; we do not collect the numbers you type or the results shown.
Is the Correlation Calculator a substitute for professional advice?
This tool is for education and quick estimates. For medical, legal, tax, or financial decisions, confirm results with a qualified professional.