Linear Regression Calculator

Calculate the linear regression line y = mx + b from data points. Find slope, intercept, correlation, and R².

Input Method *

Options

Data Points (x, y) *

Each line: x,y (comma or space separated)

Decimal Precision

Show Steps

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Regression Equation

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Regression Plot

Data points with regression line

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Calculation Breakdown

Step-by-step regression calculation

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Slope (m)

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Δy/Δx

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Intercept (b)

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y-axis

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Correlation (r)

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Strength

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R²

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Coefficient

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Data Points

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Mean X

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x̄

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Mean Y

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SSE

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Residual sum

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Regression Formulas

Key regression concepts

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Regression Tips

Understanding linear regression

📊 Statistical Disclaimer: This linear regression calculator finds the line of best fit using the least squares method. Correlation (r) measures the strength and direction of the linear relationship between variables.