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

Oct 7, 2025 · Keep reading for everything you need to know about how to figure out the circumference of a circle using either the diameter or the radius. We've even got a …

May 8, 2024 · This free step-by-step guide explores what is the circumference of a circle and how to find the circumference of a circle using the circumference of a circle formula.

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 …

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 …

Aug 3, 2023 · There are two ways to get the circumference of a circle. The first method uses a radius of the circle, while the second one involves the diameter to calculate the circumference.

Jul 23, 2025 · The circumference of a circle is equal to the length of its boundary, but the circle is a curved shape, its circumference can't be measured with a ruler. The correct way to find the …

One formula use the radius of a circle; the other formula uses the diameter. **These two formulas are just two different ways of finding the same thing (circumference) because the diameter of a …

To calculate the circumference of a circle using the radius, follow these steps: Step 1: Measure the radius of the circle. The radius is the distance from the center of the circle to any point on …

Although the circumference of a circle is the length of its boundary, it cannot be calculated with the help of a ruler (scale) like it is usually done for other polygons. This is because a circle is a …