Enter the total volume of voids and the total volume of the soil into the Void Ratio Calculator. The calculator will evaluate and display the Void Ratio.

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## Void Ratio Formula

The following formula is used to calculate the Void Ratio.

**n = VV / VS *100**

- Where n is the Void Ratio (%)
- VV is the total volume of voids
- VS is the total volume of the soil

## How to Calculate Void Ratio?

The following example problems outline how to calculate Void Ratio.

Example Problem #1:

- First, determine the total volume of voids.
- The total volume of voids is given as: 40.

- Next, determine the total volume of the soil.
- The total volume of the soil is provided as: 80.

- Finally, calculate the Void Ratio using the equation above:

n = VV / VS *100

The values given above are inserted into the equation below and the solution is calculated:

n = 40 / 80 *100 = 50 (%)

Example Problem #2:** **

For this problem, the variables required are provided below:

total volume of voids = 80

total volume of the soil = 90

Test your knowledge using the equation and check your answer with the calculator above.

n = VV / VS *100** = ?**