Question 1080p 1800 dpi = 2k = ?

[Nick C.]

So recently i moved from 1080p monitor to a 2k monitor, and since i do game relatively on a competitive level, my Mouse DPI on 1080p was 1800, so what would it be on 2k monitor? Would it even change or does it remain the same?
Thanks in advance!

 

[Glenwing]

1800 × (2560/1920)