kgm2s3

kgm2s3 is a compact notation that can be used to denote the SI unit product kilograms times square meters per seconds cubed. In standard SI terminology, this expression corresponds to the unit of power, the watt, symbolized by W. Specifically, 1 watt equals 1 kilogram times 1 meter squared divided by 1 second cubed, or 1 W = 1 kg·m^2·s^-3. The watt is defined as one joule per second, with the joule itself defined as 1 kg·m^2·s^-2.

The conventional way to write this unit is kg·m^2·s^-3 and is typically abbreviated as W in everyday use. The term watt honors James Watt, a 18th‑century inventor whose work on steam engines helped lay the groundwork for modern power measurements.

The string kgm2s3 may appear in data schemas, software, or informal notes as a compact tag for the same dimensional form, but without the explicit negative sign on the exponent of the second (s). In precise contexts, the correct notation should indicate s^-3 to avoid confusion with other possible exponent conventions.

Related concepts include joules, which are units of energy (kg·m^2·s^-2), and kilowatts, which are multiples of watts (1 kW = 1000 W). Some engineering fields also use horsepower as an alternative power unit.

Overall, kgm2s3 functions as a shorthand reference to the power dimension in SI units, most accurately represented as kg·m^2·s^-3 and understood as watts in practical applications.