Reaction Kinetics Calculators (Arrhenius, Michaelis-Menten, General Reaction Rate)

Advanced Reaction Kinetics Calculator

Select the type of kinetic calculation you wish to perform from the main dropdown menu.
The required input fields for that calculation will appear. Fill in all necessary values.
For the Arrhenius Equation, select the variable you wish to solve for (new rate constant k₂ or Activation Energy Ea).
Click the "Calculate" button.
The result will be displayed, along with the option to view a detailed breakdown.
Click "Show Details" to see the specific formulas, theory, and a step-by-step walkthrough of the calculation.

Select Calculation Type:

Change in Concentration |Δ[A]| (mol/L): Change in Time Δt (seconds):

Variable to Solve For:

Initial Rate Constant (k₁): Initial Temperature (T₁) (in Kelvin): Final Temperature (T₂) (in Kelvin): Activation Energy (Ea) (in J/mol):

Gas Constant R = 8.314 J/(mol·K) is used.

Maximum Velocity (Vmax): Michaelis Constant (Km): Substrate Concentration [S]: Ensure Vmax, Km, and [S] are in consistent units.