Correlation Coefficient Calculator

To get the result, fill out the calculator form and press the Calculate button.

What is the Correlation Coefficient

The correlation coefficient is a statistical measure of the strength of a linear relationship between two variables.

Its values can range from -1 to 1. A correlation coefficient of -1 describes a perfect negative, or inverse, correlation, with values in one series rising as those in the other decline, and vice versa. A coefficient of 1 shows a perfect positive correlation, or a direct relationship. A correlation coefficient of 0 means there is no linear relationship.

Correlation Coefficient Formula

Correlation Coefficient formula

standard deviaton
  • r denotes to sample Correlation Coefficient
  • Xi is the observed values X dataset
  • Yiis the observed values Y dataset
  • X is the mean of X dataset
  • Y is the mean of Y dataset