The stokes is the cgs physical unit for kinematic viscosity. It is abbreviated S or St, and was named after George Gabriel Stokes. It is sometimes expressed in terms of centistokes (cS or cSt). In U.S. usage stoke is sometimes used as the singular form; the plural form is always stokes.

The SI physical unit of kinematic viscosity is the m²/s.

1 stokes = 100 centistokes = 1 cm²/s = 0.0001 m²/s

See also

• SI