300m

300M is an alphanumeric designation used in several domains to denote different things; there is no single object universally known as 300M. The most common use is as a shorthand for three hundred million, with M standing for million in many contexts. Other conventions may use MM or simply Mn to avoid confusion.

In finance, statistics, business, and media, 300M appears as a compact representation of a quantity, such as a budget, revenue target, or population figure. The precise meaning depends on context and accompanying units.

In catalogs and product naming, 300M is often a model number or designation used for electronics, vehicles, machinery, and other equipment. In these cases the label is a product code rather than a statement about quantity.

In measurement notation, 300 m (lowercase m) denotes 300 meters, a unit of length. The uppercase M is used as a prefix for mega when attached to a unit (for example, 300 MΩ), but it is not a stand-alone quantity.

Because 300M spans multiple domains, its meaning is highly context-dependent and should be interpreted with the surrounding information.