The newton-meter (also newton meter; symbol N⋅m or N m) is a unit of torque (also called moment) in the SI system. The newton-meter is equal to the torque generated by a force of one newton applied perpendicularly to a moment arm of one-meter length. One pounds-force foot (lb.-ft) equals 1.356 Newton meters. One Newton meter equals 0.7375 lb.-ft.
- This unit is also used as a unit of work or energy, wherein it is equivalent to the more common and standard SI unit of energy.
- In this usage, the meter term represents the distance traveled or the displacement in the direction of force; not the perpendicular distance from a fulcrum as it does when used to express torque.
The newton second is the derived unit of impulse. It is dimensionally equivalent to the momentum unit kilogram meter per second.
- It can be used to determine the resultant of the velocity of a mass if a force accelerates the mass for a specific time interval.