kilogrammeters

Kilogrammeter, abbreviated kg·m, is a non-SI unit formed by the product of the unit of mass (the kilogram) and the unit of length (the meter). It is not part of the International System of Units and has no universally defined physical meaning in its own right.

Because it combines mass and length without a per-time or per-other-factor, kg·m expresses a dimensional quantity that does not correspond to a standard physically observable quantity. In practice, the kilogrammeter appears only in informal contexts or as a placeholder in problems where the quantity is defined specifically by the source, such as mass times a lever arm, or as a shorthand in non-SI engineering notes. It should not be interpreted as torque, momentum, energy, or any other standard quantity unless the author provides a definition.

Related, but distinct, units include torque (N·m) and angular momentum (kg·m^2/s); momentum (kg·m/s); energy (kg·m^2/s^2). The unit kilogram-meter should not be confused with kilogram-force meter (kgf·m), a non-SI unit of torque defined using the gravitational force on a kilogram of mass.

Conversion and usage notes: Without a specified quantity, there is no fixed SI conversion for kg·m. If a source uses kg·m to denote a specific quantity, its meaning and any necessary conversions must be defined within that source. Otherwise, kg·m is typically treated as an informal product of mass and length rather than a standard measurement.