**www.basic-mathematics.com**/**circumference-calculator**.html

Therefore, the circumference depends only on the size of r. That is why you only need to enter r here to get the circumference The calculator will only accept positive value for r since a distance cannot be negative As a reminder, if r = 4 cm for instance, circumference = 2 ×3.14 ×4 = 25.12 cm

**www.calculatorsoup.com**/**calculators**/geometry-plane/circle.php

Circle Shape. r = radius d = diameter C = circumference A = area π = pi = 3.1415926535898 √ = square root. Calculator Use. 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.

**www.csgnetwork.com**/picalc3.html

The purpose of this calculator demonstration is to calculate the circumference of a circle. To use this calculator, begin by entering the diameter of a given circle and PI. Click on the "Calculate" button for the returned calculated value of he circle's circumference.

**circumference**-**calculator**.com

Circumference calculator is a free tool used to calculate the circumference of a circle when the radius is given. It can be also used to calculate other parameters of a circle such as diameter, radius and area. This means you can use this tool to do other calculations such as diameter to circumference, radius to area, radius to cicumference ...

**www.wikihow.com**/**Calculate-the-Circumference-of-a**-Circle

To calculate the circumference of a circle, use the formula C = πd, where "C" is the circumference, "d" is the diameter, and π is 3.14. If you have the radius instead of the diameter, multiply it by 2 to get the diameter. You can also use the formula for circumference of a circle using radius, which is C = 2πr.

**circumferencecalculator**.net

Four versions of a circumference calculator to solve geometric problems. Find circumference, radius, diameter, area, the circumference of a circle, inscribed in a square, the side length of a square by circumference. Stepwise solutions are provided.

**www.calculatorpro.com**/**calculator**/**circumference-calculator**

Since you put one of two pieces of information into the circumference calculator, there are two ways to calculate circumference. If you use the diameter of a circle, the calculator uses the formula that multiplies diameter by the number pi, which equals approximately 3.14.

www.areaofacircle.info/**circumference**-of-a-circle.html

Circumference Calculator. The following calculator finds the circumference based on the radius of a circle. The π value being used in rounded to 3.14. Type the value in the radius field and press the '»' button.

www.omni**calculator**.com/math/**circumference**

Use our circumference calculator to find the radius when you only have the circumference or area of a circle. If you wish to calculate the properties of a three-dimensional solid, such as a sphere, cylinder or cone, it's best to use our volume calculator.

**www.basic-mathematics.com**/**circumference**-of-a-circle.html

If either the radius of a circle (r) or the diameter of the circle (D) is known, you can find the circumference by simply substituting the known value for r or D in the formula. Use 3.14 for π. Examples #1