The image above represents hexagonal crystals. To calculate hexagonal crystals, two essential parameters are needed and these parameters are **Miller Index (h)Â **andÂ **Miller Index (k).**

**The formula for calculating hexagonal crystals:**

i = -(h + k)

Where:

i = Hexagonal Crystals

h = Miller Index

k = Miller Index

Given an example;

Find the hexagonal crystals when the miller index is 22 and the miller index is 11.

This implies that;

h = Miller Index = 22

k = Miller Index = 11

i = -(h + k)

i = -(22 + 11)

So, i = -(33)

i = -33

Therefore, theÂ **hexagonal crystalsÂ **isÂ **-33.**

Read more:Â How to Calculate and Solve for Unit Cell Edge Length | Crystal Structures

**Calculating the Miller Index (h) when the Hexagonal Crystals and the Miller Index (k) are Given**

h = – (i + k)

Where:

h = Miller Index

i = Hexagonal Crystals

k = Miller Index

Let’s solve an example;

Find the miller index when the hexagonal crystal is 8 and the miller index is 3.

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This implies that;

i = Hexagonal Crystals = 8

k = Miller Index = 3

h = – (i + k)

That is, h = – (8 + 3)

h = – 11

Therefore, theÂ **miller indexÂ **isÂ **-11.**

**Calculating the Miller Index (k) when the Hexagonal Crystals and the Miller Index (h) are Given**

k = -(i + h)

Where:

k = Miller Index

i = Hexagonal Crystals

h = Miller Index

Let’s solve an example;

Find the miller index when the hexagonal crystal is 5 and the miller index is 9.

This implies that;

i = Hexagonal Crystals = 5

h = Miller Index = 9

k = – (i + h)

Then, k = – (5 + 9)

k = – 14

Therefore, theÂ **miller indexÂ **isÂ **– 14.**

**How to Calculate Hexagonal Crystals |Nickzom Calculator**

Nickzom Calculator â€“ The Calculator Encyclopedia is capable of calculating the hexagonal crystals.

To get the answer and workings of the hexagonal crystals using the Nickzom Calculator â€“ The Calculator Encyclopedia. First, you need to obtain the app.

You can get this app via any of these means:

WebÂ â€“Â https://www.nickzom.org/calculator-plus

To get access to theÂ professionalÂ version via web, you need toÂ registerÂ andÂ subscribeÂ to have utter access to all functionalities.

You can also try theÂ demoÂ version viaÂ https://www.nickzom.org/calculator

Android (Paid)Â â€“Â https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

Android (Free)Â â€“Â https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

Apple (Paid)Â â€“Â https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to theÂ Calculator Map,Â then click onÂ Materials and MetallurgicalÂ underÂ Engineering.

Now, Click onÂ **Crystal Structures**Â underÂ **Materials and Metallurgical**

Now, Click onÂ **Hexagonal Crystals **underÂ **Crystal Structures**

The screenshot below displays the page or activity to enter your values, to get the answer for the hexagonal crystals according to the respective parameter which is the **Miller Index (h)Â **andÂ **Miller Index (k).**

Now, enter the values appropriately and accordingly for the parameters as required by the **Miller Index (h)** is **22 **and **Miller Index (k)** is **11**.

Finally, Click on Calculate

As you can see from the screenshot above, Nickzom Calculatorâ€“ The Calculator Encyclopedia solves for the hexagonal crystals and presents the formula, workings and steps too.