The image above represents volume ratio.

To compute for volume ratio, two essential parameters are needed and these parameters are **Mass of the Liquid Metal filling the Mould Cavity, Gates and Risers (G)** and** Casting Volume (V).**

The formula for calculating volume ratio:

K_{v} = ^{G} / _{V}

Where:

K_{v} = Volume Ratio

G = Mass of the Liquid Metal Filling the Mould Cavity,Gates and Risers

V = Casting Volume

Let’s solve an example;

Find the volume ratio when the mass of the liquid metal filling the mould cavity, gates and risers is 12 and the casting volume is 24.

This implies that;

G = Mass of the Liquid Metal Filling the Mould Cavity,Gates and Risers = 12

V = Casting Volume = 24

K_{v} = ^{G} / _{V}

K_{v} = ^{12} / _{24}

K_{v} = **0.5**

Therefore, the **volume ratio** is **0.5.**

**Calculating the Mass of the Liquid Metal Filling the Mould Cavity, Gates and Risers when the Volume Ratio and the Casting Volume is Given.**

G = K_{v} x V

Where;

G = Mass of the Liquid Metal Filling the Mould Cavity,Gates and Risers

K_{v} = Volume Ratio

V = Casting Volume

Let’s solve an example;

Find the mass of the liquid metal filling the mould cavity, gates and risers when the volume ratio is 15 and the casting volume is 10.

This implies that;

K_{v} = Volume Ratio = 15

V = Casting Volume = 10

G = K_{v} x V

G = 15 x 10

G = 150

Therefore, the **mass of the liquid metal filling the mould cavity,gates and risers **is **150.**

**Calculating the Casting Volume when the Volume Ratio and the Mass of the Liquid Metal Filling the Mould Cavity, Gates and Risers is Given.**

V = ^{Kv} / _{G}

Where;

V = Casting Volume

K_{v} = Volume Ratio

G = Mass of the Liquid Metal Filling the Mould Cavity,Gates and Risers

Let’s solve an example;

Find the casting volume when the volume ratio is 62 and the mass of the liquid metal filling the mould cavity,gates and risers is 22.

This implies that;

K_{v} = Volume Ratio = 62

G = Mass of the Liquid Metal Filling the Mould Cavity,Gates and Risers = 22

V = ^{Kv} / _{G}

V = ^{62} / _{22}

V = 2.81

Therefore, the **casting volume **is **2.81.**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the volume ratio.

To get the answer and workings of the volume ratio 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** – https://www.nickzom.org/calculator-plus

To get access to the **professional **version via web, you need to **register** and **subscribe **for** NGN 1,500 **per** annum** to have utter access to all functionalities.

You can also try the **demo **version via https://www.nickzom.org/calculator

**Android (Paid)** – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)** – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)** – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to the **Calculator Map, **then click on **Materials & Metallurgical**** **under **Engineering****.**

Now, Click on **Foundry Technology**** u**nder **Material & Metallurgical**

Now, Click on **Design of Gating System **under **Foundry Technology**

Now, Click on **Volume Ratio**** **under **Design of Gating System**

The screenshot below displays the page or activity to enter your values, to get the answer for the volume ratio according to the respective parameters which are the **Mass of the Liquid Metal filling the Mould Cavity, Gates and Risers (G)** and** Casting Volume (V).**

Now, enter the values appropriately and accordingly for the parameters as required by the **Mass of the Liquid Metal filling the Mould Cavity, Gates and Risers (G)** is **12 **and** Casting Volume (V)** is **24**.

Finally, Click on Calculate

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