Emax Model Calculator

Sigmoidal Emax (Hill) equation

PK‑PD modeling

Model Parameters

Emax (%)

EC₅₀ (nM)

Hill coefficient

Baseline (%)

Test Concentration (nM)

Example Drugs

Effect at [C]

Enter values

Linear Scale

Log‑Dose Scale

Interpretation

Hill coefficient n > 1 indicates positive cooperativity.