Michaelis-Menten Calculator
Calculate the rate of enzyme-catalyzed reactions (v) from substrate concentration [S], maximum velocity (Vmax), and the Michaelis constant (Km).
Input Parameters
Enter details for calculation.
Reaction Velocity (v)
Fractional Saturation (v / V_max)
Expert Tip
At substrate concentration equal to Km, the initial reaction velocity is exactly half of Vmax. Km represents the affinity of the enzyme for its substrate.
Calculation Methodology & Details
Formula
The Michaelis-Menten model describes the rate of enzymatic reactions by relating reaction velocity v to substrate concentration [S]. Km is the substrate concentration at which reaction rate is half of Vmax.
Important Disclaimer
The calculations provided are for educational and general planning guidelines only. They do not replace professional laboratory or environmental analysis or certified scientific advice.
How to Calculate Enzymatic Rate
Steps to find reaction velocity:
Enter constants
Input maximum velocity (Vmax) and Michaelis constant (Km) for the specific enzyme.
Provide Substrate Conc
Input substrate concentration [S].
Observe saturation
The calculator displays the resulting velocity and percentage of enzyme saturation.