The image above is a sphere and 18 m is the diameter of the sphere. In the computing of the centroid or centre of gravity of a sphere there is only one essential parameter which is the **diameter** of the sphere.

The formula for calculating the centroid or centre of gravity of a sphere is:

C.G. = ^{d} / _{2}

Where:

d is the diameter of the sphere

As always, let’s take an example:

Let’s solve an example

Find the centroid or centre of gravity of a sphere where the diameter is 18 m.

C.G. = ^{18} / _{2}

C.G. = 9

Therefore, the **centroid or centre of gravity of the sphere** is 9.

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the centre of gravity of a sphere at a distance from every point.

To get the answer and workings of the **center of gravity** or **centroid **of a sphere 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 **Mechanics**** **under the **Engineering** section

Now, click on **Centre of Gravity** under **Statics**

Now, click on **Centre of Gravity of a Sphere**

The screenshot below displays the page or activity to enter your value to get answer for centre of gravity of a sphere according to the respective parameter which is the diameter of the sphere (d).

Now, enter the value appropriately and accordingly for the parameter as required by the **example** above where the diameter of the sphere is **18**.

Lastly, click on the **Calculate** button

As you can see from the screenshot above, **Nickzom Calculator** – The Calculator Encyclopedia solves for the centre of gravity or centroid of a sphere and presents the formula, workings and steps too.