# Perimeter of a Semicircle Calculator

## What is the Perimeter of a Semicircle Calculator?

Cuemath's Perimeter of a Semicircle is an online tool that helps to calculate the perimeter of a semicircle. Cuemath's online Perimeter of a Semicircle calculator helps you to calculate the perimeter of a semi-circle within a few seconds.

Note: Please enter the values upto four digits only.

## How to Use Perimeter of a Semicircle Calculator?

Please follow the below steps to find the perimeter of a semicircle:

**Step1:**Enter the radius of the semi-circle in the given input box.**Step 2:**Click on the**"Calculate"**button to find the perimeter of a semicircle.**Step 3:**Click on the**"Reset"**button to clear the fields and find the perimeter of a semicircle for different values.

## How to Find Perimeter of a Semicircle?

The diameter of a circle divides the circle into two equal semicircles. The area of any semicircle is half of the area of a circle.To find the perimeter of a semicircle we need to add the curved section of the semicircle and the length of the diameter at the bottom of the semicircle. We can find the perimeter of a semicircle with the help of this below formula:

**The perimeter of the semi-circle = πr + 2r units**, where 'r is the radius of the semi-circle.

**Solved Example:**

Find the perimeter of the semicircle if the radius is 5 units?

**Solution:**

The perimeter of the semicircle = πr + 2r

= (π × 5) + (2 × 5)

= 15.707 + 10

= 25.707 units.

Therefore, the perimeter of the semi-circle is 25.707 units.

Similarly, you can try the calculator to find the perimeter of the semi-circle

1) Radius = 8 units

2) Radius = 12 units

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