megapoise [MP] Unit Converter

Definition of megapoise [MP] unit

The megapoise (MP) is a unit of dynamic viscosity equal to one million poise (10^6 P). In SI terms, it equals 100,000 pascal-seconds (Pa·s), expressing a fluid’s resistance to shear or deformation under applied stress.

History of megapoise [MP] unit

The megapoise derives from the poise, named after French physicist Jean Léonard Marie Poiseuille, whose nineteenth-century studies of blood flow helped establish quantitative laws for fluid movement. The poise became a cgs unit of dynamic viscosity, defined as one dyne-second per square centimeter. The prefix mega- denotes one million, so a megapoise equals 10^6 poise. Although viscosity measurements increasingly use the SI pascal-second, the megapoise remains encountered in older technical literature, specialized industrial documentation, and some high-viscosity material descriptions, particularly where cgs-based data are retained.

Applications of megapoise [MP] unit

Today, megapoise is mainly used to describe extremely viscous substances, including glass melts, bitumen, polymer resins, asphalt, and certain lubricating materials. Engineers may encounter it in legacy reports, rheology references, and industrial specifications. For modern calculations, values are commonly converted to pascal-seconds: 1 MP equals 100,000 Pa·s, simplifying comparison with SI measurements.

Complete list of megapoise [MP] unit conversion