Weber Number Calculators

➔ Calculate Weber Number
➔ Calculate Surface Tension
➔ Calculate Density
➔ Calculate Velocity
➔ Calculate Length

Calculate Weber Number


W = Weber Number      ρ = Density
v = Velocity      L = Length      σ = Surface Tension
Density:
Velocity:
Length:
Surface Tension:
Weber Number:

Calculate Surface Tension


W = Weber Number      ρ = Density
v = Velocity      L = Length      σ = Surface Tension
Density:
Velocity:
Length:
Weber Number:
Surface Tension:
Newton/Meter

Calculate Density


W = Weber Number      ρ = Density
v = Velocity      L = Length      σ = Surface Tension
Weber Number:
Surface Tension:
Velocity:
Length:
Density:
Kilogram/Meter3

Calculate Velocity


W = Weber Number      ρ = Density
v = Velocity      L = Length      σ = Surface Tension
Weber Number:
Surface Tension:
Density:
Length:
Velocity:
Meter/Second

Calculate Length


W = Weber Number      ρ = Density
v = Velocity      L = Length      σ = Surface Tension
Weber Number:
Surface Tension:
Density:
Velocity:
Length:
Meter

The Weber number (We) is a dimensionless number that represents the relative importance of inertial forces to surface tension forces in a fluid flow. It is commonly used in the study of droplets, bubbles, or other phenomena involving surface tension.

The Weber number is given by the formula:

Where:

  • = density of the fluid (kg/m³)
  • = velocity of the fluid (m/s)
  • = characteristic length (m), such as the diameter of a droplet or bubble
  • = surface tension of the fluid (N/m)

To calculate one of the variables, you would need to rearrange this formula depending on what you want to solve for.

Here are the individual formulas to calculate each of the variables:

  1. Calculate Weber Number (We):

  2. Calculate Surface Tension (σ):

  3. Calculate Density (ρ):

  4. Calculate Velocity (v):

  5. Calculate Length (L):