What are the dimensions of Boltzmann's constant?

According to the law of equipartition of energy, the energy per degree of freedom of a gas atom or molecule at a temperature $\theta$ kelvin is given by

$E=\frac{1}{2} k \theta or k= \frac{2E}{\theta }$ 

where k is the Boltzmann's constant.

∴ $$\begin{gathered} Dimensions of k=\frac{dimensions of E}{dimensions of \theta } \\ =\frac{M{L}^2{T}^{-2}}{K}= M{L}^2{T}^{-2}{K}^{-1} \end{gathered}$$