# Perimeter of Semicircle Calculator

## Perimeter of Semicircle Calculator

The perimeter of a semicircle calculator is a free online calculator which helps you to easily calculate the perimeter of any semicircle.

You just have to enter the radius of the semicircle, then click on the ‘Calculate’ button. This tool automatically calculates and displays the perimeter of the semicircle to you.

## What is the Perimeter of a Semicircle?

The perimeter of a semicircle is the sum of half of the circumference of the circle and its diameter.

## How to Calculate the Perimeter of a Semicircle?

As we know, the perimeter of a semicircle is equal to the sum of half of the circumference of a circle and its diameter.

Perimeter of Semicircle = πr + d = πr + 2r

Example: Calculate the perimeter of a semicircle whose radius is 7 cm.

The radius of the semicircle = 7 cm

Using the mathematical formula, we get:

Perimeter of semicircle = πr + 2r = (3.14 * 7) + (2 * 7) = 21.98 + 14 = 35.98

Hence, the Perimeter of the semicircle = 35.98 cm.