Kon/Koff Calculator

Calculate binding kinetics rate constants, residence time, and complex half-life

Calculation Mode

What to Calculate

kon (M^-1 s^-1)

Kd

Unit

kon

1.000e+6

M^-1 s^-1

koff

1.000e-3

s^-1

Kd

1.000e-9 M

Ka

1.000e+9 M^-1

Residence Time

16.67 minutes

Complex Half-life

693.1472 s

Key Equations

Kd = koff / kon
kobs = kon[L] + koff
t1/2 = ln(2) / koff
Residence time = 1 / koff