Arrhenius Equation Calculator

Arrhenius Equation: K = A × e(Ea /(R × T))

Universal Gas Constant(R) = 8.314 × 103 kJ mol1 K1

Frequency Factor (A) = sec1

Activation Energy (Ea) = kJ Mol1

Temperature (T) = K

Rate Constant (K):


Arrhenius Equation Calculator is a free online tool that displays the rate of the chemical reaction. BYJU’S online Arrhenius equation calculator tool makes the calculation faster and it displays the rate constant in a fraction of seconds.

How to Use the Arrhenius Equation Calculator? 

The procedure to use the Arrhenius equation calculator is as follows:

Step 1: Enter the temperature, activation energy, frequency factor in the input field

Step 2: Now click the button “Calculate Rate Constant” to get the rate of chemical reaction 

Step 3: Finally, the rate constant for the chemical reaction will be displayed in the output field

What is Meant by the Arrhenius Equation?

In Chemistry, the Arrhenius equation is an equation which provides the relationship between temperature, rate constant and the activation energy. The Arrhenius equation is mostly used to find the rate and activation energy of the chemical reaction. The formula to calculate the temperature dependence rate constant using the Arrhenius equation is given by

K = Ae(-Ea/RT)


A is the pre-exponential factor

Ea is the activation energy

T is the absolute temperature

R is the universal gas constant

K is the rate constant.


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