What is Dimensional Formula of moment of couple?

Moment of couple is defined as the product of perpendicular distance between the forces and magnitude of the force.

Mathematically,

Moment of couple = Force x Distance

Dimensional Formula of Force= M¹L¹T^-2
Dimensional Formula of Distance = M⁰L¹T⁰

Putting these values in the given equation we get,

Dimensional Formula of moment of couple = M¹L²T^-2
SI unit of moment of couple is Newton metre (N m)