Welcome to Linear Regression Calculator

This tool helps you find the best-fit straight line for your data using the least squares method. It's widely used in predictive modeling, machine learning, economics, and scientific research.

How to Use

  • Enter your X and Y values as comma-separated numbers
  • Click "Calculate" to compute the regression line
  • View the equation, slope, intercept, and correlation metrics
  • Use the prediction box to estimate Y for any X value
  • Toggle display options to show/hide additional information

Common Applications

Predictive Modeling
Forecast future trends based on historical data
Machine Learning
Foundation for many supervised learning algorithms
Economics
Analyze relationships between economic variables
Scientific Research
Model relationships in experimental data