Energy E in total per level, or per state in level?

[ZedCar]

I'm working on a problem concerning energy levels in a 3D box.

I have calculated the energy levels in eV using the standard equation:

En = { { ∏^2 (h-bar)^2 } / 2ma^2 } (n^2 + n^2 + n^2)

Are these calculated energy levels the total energy per level?

Or does the energy E calculated using this formula apply to each state within that level?

Thank you.

 

[mfb]

I would expect different variables for the different dimensions.
That is the energy of a single particle in that state (or one of those states, if you have multiple states with the same energy).

 

[ZedCar]

I would expect different variables for the different dimensions.

The 3 dimensions are all equal.