What is the metric system unit for torque?

The metric system unit for torque is expressed in Newton meters. Torque is a measure of the rotational force applied to an object, and in the metric system, it is quantified using Newtons for force and meters for distance.

One Newton meter represents the torque produced when a one Newton force is applied perpendicular to a one-meter distance from the pivot point. This is a standard unit of measure that is widely accepted in engineering and physics, particularly when working with metric measurements.

The other options reflect torque measurements used in the imperial system, which, while valid in their own context, do not pertain to the metric system. The metric system is built on a base of ten, making it more intuitive for calculations and conversions, especially in scientific disciplines, reinforcing the rationale behind the preference for Newton meters in relevant applications.