Use this free circumference calculator to find the area, circumference and diameter of a circle.

In geometry, the circumference (from Latin circumferēns 'carrying around, circling') is the perimeter of a circle or ellipse. The circumference is the arc length of the circle, as if it were …

Use this calculator to easily calculate the circumference of a circle, given its radius in any metric: mm, cm, meters, km, inches, feet, yards, miles, etc. If you know the diameter, first divide it by …

Aug 3, 2023 · The circumference of a circle is the distance around the boundary of the circle. It is the same as calculating the perimeter of any polygon such as triangle, square, and rectangle.

What is Circumference? Circumference is basically the length when measured through the boundary of a circle. It is same as the perimeter of other polygons, just that it has a special …

The formula for circumference is based on the constant π (pi), which is an irrational number approximately equal to 3.14159. π is the ratio of the circumference to the diameter of any circle.

Feb 6, 2024 · Use this circle calculator to find the area, circumference, radius or diameter of a circle. Given any one variable A, C, r or d of a circle you can calculate the other three unknowns.

Circumference is the distance around a circle - like the length you'd measure if you wrapped a string around the edge of a circular object. Think of it as the perimeter of a circle.

Apr 21, 2025 · In this article, we’ll explain what circumference means, give you the exact formula, show you how to calculate it step by step, and include a handy calculator and infographic to …

The circumference is the distance around the outside of a circle, also known as the perimeter of a circle. If the path around the circle were flattened out into a straight line, the circumference …