Reynolds Number Calculator

Calculate Reynolds Number









Formula

The formula to calculate the Reynolds Number (Re) is:

\[ Re = \frac{\rho_1 \cdot v_{fd} \cdot d_p}{\mu_v} \]

Definition

The Reynolds Number is the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities.

Example Calculation

Let's assume the following values:

Using the formula:

\[ Re = \frac{4 \cdot 126.24 \cdot 1.01}{1.02} \approx 500.009411764706 \]

The Reynolds Number is approximately 500.009411764706.

Conversion Chart

Density of Liquid (Kilogram per Cubic Meter) Reynolds Number
1 125.002352941176468
2 250.004705882352937
3 375.007058823529349
4 500.009411764705874
5 625.011764705882342
6 750.014117647058697
7 875.016470588235279
8 1,000.018823529411748
9 1,125.021176470587989
10 1,250.023529411764684