Octagon Area Calculator

Calculate the area of a regular octagon quickly and easily. Just enter the side length and choose your unit!

Area Formula


Result:

Result will appear here...

What is an Octagon?

An octagon is a polygon with eight sides and eight angles. A regular octagon is a special type of octagon where all sides have equal length and all interior angles are equal. Regular octagons are highly symmetrical and appear in various fields, from architecture to design.

Area of a Regular Octagon

The area of a regular octagon can be calculated using the formula:

Where \( s \) is the length of a side of the regular octagon. This formula is derived using trigonometry and geometric properties of the octagon.

How to Use This Calculator

This tool simplifies the process of calculating the area of an octagon, making it accessible for educational purposes, construction, and design projects.