What is the circumference of a circle with diameter 7 cm?

Here is the answer to questions like: how to find the perimeter of a circle with diameter 7 cm? Use the this circumference length calculator above to find the perimeter of a circle given its diameter, or other parameters.

Here is the answer to questions like: how to find the perimeter of a circle with diameter 7 cm?

Circle Calculator

Use the this circumference length calculator above to find the perimeter of a circle given its diameter, or other parameters.

Formula to calculate the circumference of a circle

Here a three ways to find the circumference or perimeter of a circle:

Circumference length formula in terms of radius

C = 2·π·r

Circumference length formula in terms of diameter

C = π·d

Circumference length formula in terms of area

C = √4·π·A

Questions this calculator can answer:

  • How to find the perimeter of a circle with a radius of 3.5 cm?
  • A circle has a diameter of 7 cm. What is its circumference?
  • If a circle has a area of 38.48 square centimeters. What is its perimeter?

Examples of Circumference of a Circle Solutions

  • Circunference with area 5.5 pi units
  • Circunference with diameter 7.54 m
  • Circunference with area 5.5 pi units
  • Circunference with area 6.5 pi units
  • Circunference with area 13.5 pi
  • Circunference with diameter 4.22 units
  • Circunference with radius 9.55 centimeters
  • Circunference with diameter 7.65 units
  • Circunference with diameter 3.52

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