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Use our free linear regression calculator to find the slope, y-intercept, r², and equation of the best-fit line y = mx + b.
Linear regression finds the line of best fit y = mx + b using the least squares method. The slope m and intercept b minimize the sum of squared residuals.
y = mx + b, m = (n∑xy-∑x∑y)/(n∑x²-(∑x)²), b = ȳ - mx̄Percentage: The percentage value you want to apply
Number: The original number or value
Result: The calculated result
Result: 1.010000
CalculateMe Team
Last updated: 2026-07-14