Enter the volume of the substance (mL) and the volume of all substances (mL) into the Volume Fraction Calculator. The calculator will evaluate and display the Volume Fraction.

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## Volume Fraction Formula

The following formula is used to calculate the Volume Fraction.

**Vf = Vs / Va**

- Where Vf is the Volume Fraction (mL/mL)
- Vs is the volume of the substance (mL)
- Va is the volume of all substances (mL)

## How to Calculate Volume Fraction?

The following example problems outline how to calculate Volume Fraction.

Example Problem #1:

- First, determine the volume of the substance (mL).
- The volume of the substance (mL) is given as: 40.

- Next, determine the volume of all substances (mL).
- The volume of all substances (mL) is provided as: 100.

- Finally, calculate the Volume Fraction using the equation above:

Vf = Vs / Va

The values given above are inserted into the equation below:

Vf = 40 / 100 = .40 (mL/mL)

Example Problem #2:** **

The variables needed for this problem are provided below:

volume of the substance (mL) = 90

volume of all substances (mL) = 180

Entering these values and solving gives:

Vf = Vs / Va = .50 (mL/mL)