Dose Response Curve Generator

Published August 19, 2026

📈 Dose–Response Curve Generator

Nonlinear regression for 4PL / 5PL dose-response analysis

⚙️ Curve Settings

Regression Model Curve Type

X Scale

Curve Points

🧪 Experimental Data

#	Dose / Concentration	Response

Enter positive dose/concentration values. For logarithmic dose-response analysis, doses should normally span several orders of magnitude.

Experimental data Fitted curve

EC50 / IC50 —

Top —

Bottom —

Hill Slope —

R² —

Model —

n —

Midpoint —

Enter experimental data and click Fit Curve.

📐 Model Equation

Y = Bottom + (Top − Bottom) / [1 + (EC50 / X)^HillSlope]

The generator estimates nonlinear parameters directly from the supplied dose-response observations. EC50 represents the concentration producing 50% of the response range. For inhibitory curves the corresponding midpoint is commonly reported as IC50.