Pipeng Toolbox : Saybolt Viscosity Calculators Blank User
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Liquid Saybolt Viscosity

Calculate Saybolt universal seconds (SUS), and Saybolt Furol seconds (SFS) for a single phase liquid.

Saybolt viscometers are used to measure liquid viscosity by the time taken for a specified quantity of the liquid to flow downwards through a vertical tube. Viscosity can be entered as either

  • Dynamic viscosity
  • Kinematic viscosity
  • Saybolt Universal Seconds (SUS) measured at 100 F
  • Saybolt Universal Seconds at time T (SUST) measured at temperature T
  • Saybolt Furol Seconds (SFS122) measured at 122 F
  • Saybolt Furol Seconds (SFS210) measured at 210 F

Saybolt Universal seconds are measured with the universal tip. Saybolt Furol seconds are measured with the Furol tip. Saybolt Furol seconds are used for viscous liquids. The Saybolt viscometer is not suitable for fluids with a viscosity less than 1.8 centi Stokes (cSt), or 1.8e-6 meters square per second (m^2/s).

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CALCULATOR : Liquid Dynamic Viscosity And Kinematic Viscosity [FREE]   ±

Calculate liquid dynamic and kinematic viscosity.

Calculate kinematic viscosity from dynamic viscosity, or dynamic viscosity from kinematic viscosity. Kinematic viscosity is equal to the dynamic viscosity divided by the fluid density. For liquids lighter than or equal to water the density can be defined as degrees API, or degrees Baume (Be-). For liquids heavier than water the density can be defined by degrees Baume (Be+), or degrees Twaddell.

Tool Input

  • sgtype : Fluid Density Type
    • SGu : User Defined Specific Gravity
    • Be+u : User Defined Degrees Baume SG > 1
    • Be-u : User Defined Degrees Baume SG <= 1
    • Twu : User Defined Degrees Twaddell SG > 1
    • APIu : User Defined Degrees API SG <= 1
    • ρu : User Defined Liquid Density
  • visctype : Viscosity Type
    • μu : User Defined Dynamic Viscosity
    • νu : User Defined Kinematic Viscosity

Tool Output

  • μ : Fluid Dynamic Viscosity
  • ν : Fluid Kinematic Viscosity
  • ρ : Fluid Density
  • SG : Fluid Specific Gravity

CALCULATOR : Liquid Dynamic Kinematic And Saybolt Universal Viscosity [FREE]   ±

Calculate dynamic viscosity, kinematic viscosity, Saybolt universal seconds (SUS), and Saybolt Furol seconds (SFS).

Saybolt viscometers are used to measure liquid viscosity by the time taken for a specified quantity of the liquid to flow downwards through a vertical tube.

  • Saybolt Universal Seconds (SUS) measured at 100 F
  • Saybolt Universal Seconds at time T (SUST) measured at temperature T
  • Saybolt Furol Seconds (SFS122) measured at 122 F
  • Saybolt Furol Seconds (SFS210) measured at 210 F

Saybolt seconds can be converted to kinematic viscosity and dynamic viscosity. Saybolt Universal seconds are measured with the universal tip. Saybolt Furol seconds are measured with the Furol tip. Saybolt Furol seconds are used for viscous liquids. The Saybolt viscometer is not suitable for fluids with a viscosity less than 1.8 centi Stokes (cSt), or 1.8e-6 meters square per second (m^2/s). Viscosity can be entered as either dynamic viscosity, kinematic viscosity, Saybolt universal seconds, or Saybolt Furol seconds.

Tool Input

  • visctype : Viscosity Type
    • μu : User Defined Dynamic Viscosity
    • νu : User Defined Kinematic Viscosity
    • SUS100u : User Defined Saybolt Universal Seconds At 100 F
    • SUSTu : User Defined Saybolt Universal Seconds At T
    • SFS122u : User Defined Saybolt Furol Seconds At 122 F
    • SFS210u : User Defined Saybolt Furol Seconds At 210 F
  • ρ : Fluid Density
  • T : Fluid Temperature

Tool Output

  • μ : Fluid Dynamic Viscosity
  • ν : Fluid Kinematic Viscosity
  • cvg : Convergence Check

CALCULATOR : Liquid Density [FREE]   ±

Calculate single phase liquid density from specific gravity, degrees Baume, degrees Twaddell, or degrees API.

For liquids lighter than or equal to water the density can be defined as degrees API, or degrees Baume (Be-). For liquids heavier than water the density can be defined by degrees Baume (Be+), or degrees Twaddell.

Tool Input

  • sgtype : Density Type
    • SGu : User Defined Specific Gravity
    • Be+u : User Defined Degrees Baume SG > 1
    • Be-u : User Defined Degrees Baume SG <= 1
    • Twu : User Defined Degrees Twaddell SG > 1
    • APIu : User Defined Degrees API SG <= 1
    • ρu : User Defined Liquid Density

Tool Output

  • ρ : Fluid Density
  • API : Degrees API SG ≤ 1
  • Be+ : Degrees Baume SG > 1
  • Be- : Degrees Baume SG ≤ 1
  • SG : Specific Gravity
  • Tw : Degrees Twaddell SG > 1