Enter the radius and the number of revolutions into the Area of Revolution Calculator. The calculator will evaluate the Area of Revolution.

## Area of Revolution Formula

The following two example problems outline the steps and information needed to calculate the Area of Revolution.

**AOR = pi*r^2*REV**

Variables:

- AOR is the Area of Revolution (units^2)
- r is the radius
- REV is the number of revolutions

## How to Calculate Area of Revolution?

The following steps outline how to calculate the Area of Revolution.

- First, determine the radius.
- Next, determine the number of revolutions.
- Next, gather the formula from above = AOR = pi*r^2*REV.
- Finally, calculate the Area of Revolution.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

radius = 5

number of revolutions = 30

AOR = pi*r^2*REV** **= ?