Diameter of a circle definition and calculator.

Math Open Reference.

Learn more about pi, or explore hundreds of other calculators addressing finance, math, fitness, health, and more.

Diameter to Circumference Calculator. Calculator Use. Enter the diameter or two times the radius of a circle. Enter the area contained within a circle. Also find out why area is equal to pi*r squared Circle Calculator. Calculations at a circle. Radius The radius is the distance from the center of the circle to any point on the perimeter. Terminology "Area" - The amount of surface covered by a two dimensional shape. This circumference to diameter calculator is used to find the diameter of a circle given its circumference. Diameter of Circle. Area: Diameter: Circumference: Did you find us useful? Circumference or perimeter of a circle is defined as the distance around it. Its mathematically accurate and useful for Construction projects, wood workers, home owners, students, and real estate. Calculate area, circumference and radius of a circle. The diameter will always pass through the center of the circle. This means you can use this tool to do other calculations such as diameter to circumference, radius to area, radius to cicumference, area to radius, area to circumference etc. You can also use it to find the area of a circle: A = π * R² = π * 14² = 615.752 cm². The diameter is the distance from one side of the circle to the other at its widest points. Once you have the diameter (d) of the circle, you can find the radius (r) using the equation d=2_r_. A = Circle area; π = Pi = 3.14159… ø = Circle diameter; Diameter of Circle. This geometry calculator will take one known circle measurement (area, circumference, diameter, or radius) and calculate the other three. A circle is a simple closed shape in Euclidean geometry. What Is Diameter? Diameter (of a circle) The distance across a circle through its center point. Circle area calculator and circumference calculator provide you with a simple way of determining the square footage area for various shapes. Symbols. Infact, all the numbers are shown as soon as you type any one number. Finally, you can find the diameter - it is simply double the radius: D = 2 * R = 2 * 14 = 28 cm. Home Contact About Subject Index.