How to Calculate and Solve for Force Settling Ratio | Coarse Particles | Mineral Processing

Last Updated on December 6, 2021

The image above represents force settling ratio | coarse particles.

To compute for force settling ratio, three essential parameters are needed and these parameters are Density of Particle a (ρa), Density of Particle b (ρb) and Density of Fluid (ρf).

The formula for calculating force settling ratio:

da/db = (ρb – ρf/ρa – ρf)


da/db = Force settling ratio
ρa = Density of Particle a
ρb = Density of Particle b
ρf = Density of Fluid

Let’s solve an example;
Find the force settling ratio when the density of particle is 12, density of particle is 14 and the density of fluid is 10.

This implies that;

ρa = Density of Particle a = 12
ρb = Density of Particle b = 14
ρf = Density of Fluid = 10

da/db = (ρb – ρf/ρa – ρf)
da/db = (14 – 10/12 – 10)
da/db = (4/2)
da/db = 2

Therefore, the force settling ratio is 2.

Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the force settling ratio | coarse particles.

To get the answer and workings of the force settling ratio | coarse particles using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.

You can get this app via any of these means:

Web –

To get access to the professional version via web, you need to register and subscribe to have utter access to all functionalities.
You can also try the demo version via

Android (Paid) –
Android (Free) –

Apple (Paid) –
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.

Now, Click on Mineral Processing under Materials and Metallurgical

Now, Click on Force Settling Ratio | coarse particles under Mineral Processing

The screenshot below displays the page or activity to enter your values, to get the answer for the force settling ratio according to the respective parameter which is the Density of Particle a, (ρa), Density of Particle b, (ρb) and Density of Fluid (ρf).

Now, enter the values appropriately and accordingly for the parameters as required by the Density of Particle a, (ρa) is 12, Density of Particle b, (ρb) is 14 and Density of Fluid (ρf) is 10.

Finally, Click on Calculate

As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the force settling ratio and presents the formula, workings and steps too.

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