# Perimeter of ellipse calculator

The formula for the perimeter of an ellipse is quite complicated, but there are calculators available online that can help you find it quickly and easily. Here’s how you can use an online perimeter of ellipse calculator:

1. Enter the length of the major axis and the length of the minor axis of the ellipse. The major axis is the longest diameter of the ellipse, and the minor axis is the shortest diameter that is perpendicular to the major axis.
2. Click on the “Calculate” button to obtain the perimeter of the ellipse.

The online calculator will use the following formula to calculate the perimeter of the ellipse:

P = 2π sqrt((a^2 + b^2)/2)

where:

• P is the perimeter of the ellipse
• a is the length of the major axis of the ellipse
• b is the length of the minor axis of the ellipse
• π is the mathematical constant pi, approximately equal to 3.14159.

The formula involves the square root of a sum of squares, which makes it quite complicated. However, using an online calculator simplifies the process and makes it easy to obtain the perimeter of an ellipse quickly.