millipoise [mP] Unit Converter

Definition of millipoise [mP] unit

The millipoise (mP) is a unit of dynamic viscosity equal to one-thousandth of a poise. Since one poise equals 0.1 pascal-second, one millipoise equals 0.0001 pascal-second, or 0.1 millipascal-second when expressed in SI units.

History of millipoise [mP] unit

The poise was named after Jean Léonard Marie Poiseuille, whose nineteenth-century research on blood flow helped establish quantitative study of fluid viscosity. The unit entered the centimetre-gram-second (CGS) system, where one poise represented one dyne-second per square centimetre. The millipoise arose as a convenient decimal subdivision for lower-viscosity fluids. Although modern metrology favors the SI pascal-second, millipoise remains familiar in older scientific literature, industrial specifications, and reference tables, particularly where viscosity values are reported in small CGS-based increments for practical comparison.

Applications of millipoise [mP] unit

Millipoise values are used to describe the flow resistance of liquids such as oils, fuels, solvents, coatings, inks, and biological fluids. Engineers may encounter them in lubricant datasheets, laboratory measurements, and legacy process specifications. For modern reporting, values are often converted to millipascal-seconds or centipoise; 10 millipoise equals 1 centipoise.

Complete list of millipoise [mP] unit conversion