IC50 to Ki Calculator

Enzyme concentration, [E] µM
Substrate concentration, [S] µM
Michaelis-Menten constant, Km µM
Inhibitor concentration
to produce 50% inhibition, IC50
µM
Calculate

IC50-to-Ki converter Results: Enzyme-Substrate

Mode of Inhibition (Classic) Ki (µM)
Competitive
Uncompetitive
Noncompetitive
Mode of Inhibition (Tightly bound inhibitors) Ki (µM)
Competitive
Uncompetitive
Noncompetitive