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Capillary Number

Calculate Capillary Number instantly with the exact formula and a worked example.

Capillary Number

µ, Pa·s
v, m/s
σ, N/m
Ca (Capillary)
0.000139
Ca = μv/σCalculate Capillary Number instantly with the exact formula and a worked example.
Ca (Capillary)
0,000139

More about: Capillary Number

What it calculates

The “Capillary Number” calculator computes Ca (Capillary) from 3 parameters: µ, pa·s, v, m/s, σ, n/m.

A standard physics formula used in educational and engineering tasks.

Example calculation

With parameters µ, Pa·s = 0.001, v, m/s = 0.01, σ, N/m = 0.072 the result is 0.0001 (Ca = μv/σ).

How to use

  1. Enter µ, pa·s, v, m/s and σ, n/m — each field above is adjustable with a slider.
  2. Ca (Capillary) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is Capillary Number calculated?
The Capillary Number calculator computes Ca (Capillary) from µ, pa·s, v, m/s, σ, n/m. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Capillary Number calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.

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