What is the Dimensional Formula of Force Constant?

Force Constant is defined as force per unit displacement. The formula is

Force Constant= Force/Displacement
Dimensional Formula of Force = M¹L¹T^-2
Dimensional Formula of Displacement = M⁰L¹T⁰

So Dimensional Formula of Force Constant = M¹L⁰T^-2
SI unit of Force Constant is Nm^-1