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Reaction Rate Constant (k)

Calculate Reaction Rate Constant (k) instantly with the exact formula and a worked example.

Reaction Rate Constant (k)

Pre-exp.
Ea, kJ/mol
T, K
k (Arrhenius)
17.1982
Calculate Reaction Rate Constant (k) instantly with the exact formula and a worked example.

More about: Reaction Rate Constant (k)

What it calculates

The “Reaction Rate Constant (k)” calculator computes k (Arrhenius) from 3 parameters: pre-exp., ea, kj/mol, t, k.

A standard physics formula used in educational and engineering tasks.

Example calculation

With parameters Pre-exp. = 10,000,000,000, Ea, kJ/mol = 50, T, K = 298 the result is 17.2.

How to use

  1. Enter pre-exp., ea, kj/mol and t, k — each field above is adjustable with a slider.
  2. k (Arrhenius) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is Reaction Rate Constant (k) calculated?
The Reaction Rate Constant (k) calculator computes k (Arrhenius) from pre-exp., ea, kj/mol, t, k. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Reaction Rate Constant (k) calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.

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