Linear Regression Calculator

Fit a line to data points using least squares

Enter data as comma-separated pairs (x,y) one per line, or use the table.

Regression Results

Slope (b1)
Intercept (b0)
R-squared
Correlation (r)
Std Error of Estimate
N (data points)

Equation

Method: Ordinary Least Squares (OLS)
Formula: b1 = Sum((xi-xbar)(yi-ybar)) / Sum((xi-xbar)^2), b0 = ybar - b1*xbar