Online Regression Calculator

For advanced multivariable nonlinear regression, use ndCurveMaster. It automatically discovers complex equations like:

Y = a₀ + a₁·x₁^-5 + a₂·sin(x₂)^-1.3 + a₃·1/4^x₃ + a₄·x₄^-0.2 + a₅·ln(x₅)² + a₆·exp(x₆)² + a₇·cos(x₂)^1/2·ln(x₃)·x₆^-1/3

Download the free trial.

For simple regression tasks, you can use the calculator on this page.

This regression calculator runs in your browser, requires no installation, and is completely free to use. Just paste your x and y values to get instant results.

Supported regression models:

• Linear Regression
• Polynomial (degrees 2–5)
• Exponential
• Exponential Model (a + b · e^−cx)
• Logarithmic
• Power (log-log)
• Gaussian
• Michaelis-Menten
• 4PL and 5PL Logistic

The calculator provides key metrics such as R², MSE, MAE, and RMSE, along with automatic regression plots for visual analysis.