The title of this article is ambiguous. For the French composer see
Ferdinand Poise .
Physical unit

Unit name 
Poise

Unit symbol

${\ displaystyle \ mathrm {P}}$

Physical quantity (s)

dynamic viscosity

Formula symbol

${\ displaystyle \ eta _ {\ text {dyn}}}$

dimension

${\ displaystyle {\ mathsf {M \; L ^ { 1} \; T ^ { 1}}}}$

system

CGS system of units

In SI units

${\ displaystyle \ mathrm {1 \, P = 0 {,} 1 \, \ {\ frac {kg} {m \, s}} = 0 {,} 1 \, Pa \, s}}$

In CGS units

${\ displaystyle \ mathrm {1 \, P = 1 \; {\ frac {g} {cm \ cdot s}}}}$

Named after

Jean Léonard Marie Poiseuille

Derived from

Centimeter , gram , second

The poise ( P ) is a non legal unit of dynamic viscosity , named after the French physicist and doctor Jean Léonard Marie Poiseuille . The poise belongs to the CGS system of units and is defined as
 ${\ displaystyle 1 \ \ mathrm {P} = 1 \, \ mathrm {\ frac {g} {cm \ cdot s}}}$
The SI unit PascalSecond (Pa · s) has been used in official and business transactions since 1978 . The conversion is:
 ${\ displaystyle 1 \ \ mathrm {P} = 0 {,} 1 \, \ mathrm {\ frac {kg} {m \ cdot s}} = 0 {,} 1 \ \ mathrm {Pa \ cdot s}}$
Another unit of viscosity in AngloSaxon countries was the Reyn .