Centistokes

Units

The SI unit of kinematic viscosity is metre squared per second (m/s), whereas the CGS unit for kinematic viscosity is the stokes (St, or cm·s = 0.0001 m·s), named after Sir George Gabriel Stokes. In U.S. usage, stoke is sometimes used as the singular form. The submultiplecentistokes (cSt) is often used instead, 1 cSt = 1 mm·s = 10 m·s. 1 cSt is 1 cP divided by 1000 kg/m^3, close to the density of water. The kinematic viscosity of water at 20 °C is about 1 cSt.