The image above represents period. To calculate period, two essential parameters are needed and these parameters are **length (l)Â **andÂ **acceleration due to gravity (g).**

The formula for calculating period:

T = 2Ï€(âˆš(^{l} / _{g}))

Where;

T = Period

l = Length

g = Acceleration due to gravity

Let’s solve an example;

Find the period when the length is 4 and the acceleration due to gravity is 9.8.

This implies that;

l = Length = 4

g = Acceleration due to gravity = 9.8

T = 2Ï€(âˆš(^{l} / _{g}))

So, T = 2Ï€(âˆš(^{4} / _{9.8}))

T = 2Ï€(âˆš(0.408))

T = 2Ï€(0.6388)

Then, T = 6.28 x 0.6388

T = 4.014

Therefore, theÂ **periodÂ **isÂ **4.014 s.**

**Calculating the Length when the Period and the Acceleration due to Gravity is Given**

l = (^{T} / _{2Ï€})^{2} x g

Where;

l = Length

T = Period

g = Acceleration due to gravity

Let’s solve an example;

Find the length when the period is 28, and the acceleration due to gravity is 9.8.

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This implies that;

T = Period = 28

g = Acceleration due to gravity = 9.8

l = (^{T} / _{2Ï€})^{2} x g

l = (^{28} / _{6.28})^{2} x 9.8

So, l = (4.458)^{2} x 9.8

l = 19.87 x 9.8

l = 194.7

Therefore, theÂ **lengthÂ **isÂ **194.7.**

Read more:Â How to Calculate and Solve for Recoil Velocity | Motion

**Calculating the Acceleration due to Gravity when the Period and the Length are Given**

g = ^{l} / (^{T} / _{2Ï€})^{2}

Where;

g = Acceleration due to gravity

T = Period

l = Length

Let’s solve an example;

Find the acceleration due to gravity when the period is 12 and length is 3.

This implies that;

T = Period = 12

l = Length = 3

g = ^{l} / (^{T} / _{2Ï€})^{2}

g = ^{3} / (^{12} / _{6.28})^{2}

Then, g = ^{3} / (_{1.91})^{2}

g = ^{3} / _{3.648}

g = 0.82

Therefore, theÂ **acceleration due to gravityÂ **isÂ **0.82.**

**How to Calculate and Solve for Period Using Nickzom Calculator**

Nickzom Calculator â€“Â **The Calculator Encyclopedia** is capable of calculating the period.

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

You can get this app via any of these means:

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

To get access to theÂ **professionalÂ **version via web, you need toÂ **register**Â andÂ **subscribeÂ **for**Â NGN 1,500Â **per**Â annum**Â 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 on **Motion****Â **under **Physics****.**

Now, Click on **Period****Â **underÂ **Motion**

The screenshot below displays the page or activity to enter your values, to get the answer for the period according to the respective parameters which are theÂ **length (l)Â **andÂ **acceleration due to gravity (g).**

Now, enter the values appropriately and accordingly for the parameters as required by theÂ **length (l)Â **isÂ **4Â **andÂ **acceleration due to gravity (g)Â **isÂ **9.8.**

Finally, Click on Calculate

As you can seeÂ from the screenshot above,Â **Nickzom Calculator**â€“ The Calculator Encyclopedia solves for the period and presents the formula, workings and steps too.