What is the unit of measurement for torque in the metric system?

The unit of measurement for torque in the metric system is Newton-meters (Nm). Torque is a measure of the rotational force applied about an axis and is essentially the product of force and the distance from the point of rotation to the applied force. In the metric system, force is measured in Newtons, and distance is measured in meters. When you multiply these two units, you arrive at Newton-meters, which is correctly indicative of torque.

Newton-meters are widely recognized in engineering and physics, especially when dealing with rotary motion and mechanical power systems. In comparison, while kilogram-meters could relate to mass and distance, it is not commonly used in standard torque measurements. Joules are a unit of energy, and pound-feet are a measurement used in the imperial system rather than the metric system. Thus, Newton-meters is the appropriate and conventional unit for torque in the metric framework.