Rajat Vishwakarma
University Institute of Technology RGPV (UIT - RGPV), Bhopal
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Anshika Arya
National Institute Of Technology (NIT), Hamirpur
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Grain Fineness Number (GFN) Formula

Grain fineness number=sum of product of factor and grams/Total mass of sand
GFN=ΣM<sub>i</sub>f<sub>i</sub>/Σf<sub>i</sub>
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What is Grain Fineness Number (GFN)?

The Grain Fineness Number (GFN) is a quantitative indication of the grain distribution. To calculate the grain fineness number, each sieve has been given a weightage factor. The amount retained on each sieve is multiplied by the respective weightage factor, summed up, and then divided by the total mass of the sample, which gives the grain fineness number.

How to Calculate Grain Fineness Number (GFN)?

Grain Fineness Number (GFN) calculator uses Grain fineness number=sum of product of factor and grams/Total mass of sand to calculate the Grain fineness number, The Grain Fineness Number (GFN) is the ratio of summation of product of sand retained in each sieve and respective multiplicative factor to the total amount of sand. Grain fineness number and is denoted by GFN symbol.

How to calculate Grain Fineness Number (GFN) using this online calculator? To use this online calculator for Grain Fineness Number (GFN), enter sum of product of factor and grams (ΣMifi) and Total mass of sand (Σfi) and hit the calculate button. Here is how the Grain Fineness Number (GFN) calculation can be explained with given input values -> 1 = 0.001/0.001.

FAQ

What is Grain Fineness Number (GFN)?
The Grain Fineness Number (GFN) is the ratio of summation of product of sand retained in each sieve and respective multiplicative factor to the total amount of sand and is represented as GFN=ΣMifi/Σfi or Grain fineness number=sum of product of factor and grams/Total mass of sand. sum of product of factor and grams respectively assigned for each sieve and Total mass of sand is the sum of sand retained in each sieve.
How to calculate Grain Fineness Number (GFN)?
The Grain Fineness Number (GFN) is the ratio of summation of product of sand retained in each sieve and respective multiplicative factor to the total amount of sand is calculated using Grain fineness number=sum of product of factor and grams/Total mass of sand. To calculate Grain Fineness Number (GFN), you need sum of product of factor and grams (ΣMifi) and Total mass of sand (Σfi). With our tool, you need to enter the respective value for sum of product of factor and grams and Total mass of sand and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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