Regarding band effective mass formula

[kcbhamu]

I went through your "http://afonari.com/emc/"

I ahev two branches for effective mass calculation in band structure, G-M and G-A.
The data for k-point in G-M branch is not integer and the interval is also not same after applying this rule: "The unit of energy is eV. So, You should transform it into J ->energy x 1.6 x 10^(-19)
The unit of k-point is [ 10^10/a.u ] So, You should transform it into [ /m ] ->k-point x 10^10 / 0.529"

What should I do to make k points in G-M branch integer.
2. To make the interval equal can I interpolate k-point data? Because if I write a program for differentiation then it needs equal interval.