# What is the mathematical equation for circumference?

**circle**(Pi multiplied by the diameter of the

**circle**). Simply divide the circumference by π and you will have the length of the diameter. The diameter is just the radius times two, so divide the diameter by two and you will have the radius of the

**circle**!

Keeping this in view, what is a circumference in math?

**Circumference** (Perimeter) of a circle. The distance around the edge of a circle. You sometimes see the word '**circumference**' to mean the curved line that goes around the circle. Other times it means the length of that line, as in "the **circumference** is 2.11cm".

Similarly, what is the unit of circumference? π can be defined as the ratio of the **circumference** of a circle to its diameter, hence the **circumference** of the **unit** circle is 2π . In general the **circumference** of a circle of radius r is 2πr . The area of the **unit** circle is π (in general πr2 where r is the radius).

Also question is, what is the circumference of a sphere?

The **Circumference** of a circle or a **sphere** is equal to 6.2832 times the Radius. The **Circumference** of a circle or a **sphere** is equal to 3.1416 times the Diameter.

What is formula of circumference?

Write down the formula for finding the circumference of a **circle** using the diameter. The formula is simply this: C = πd. In this equation, "C" represents the circumference of the **circle**, and "d" represents its diameter. That is to say, you can find the circumference of a **circle** just by multiplying the diameter by pi.