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Math Calculators ▶ Circumference to Diameter Calculator

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**Table of Content**

Use the circumference to diameter calculator for precise and accurate conversion of diameter from circumference and vice versa. Get complete steps involved to get the diameter from the circumference with utmost accuracy.

A circle is round and symmetrical and each point is equidistant from its center. A circle has several properties which include the circumference and diameter.

It is the perimeter of a circle and the measure of the boundary or the area of circular edges. Circumference is the total length of the outer edges of the circle.

It is a straight line that passes through the center of the circle and extends from one edge. The diameter connects two points of the circumference with each other and it represents the width of the circular object. The circumference to diameter calculator convert circumference to diameter and vice versa.

The diameter of a circle formula from circumference is:

**d = C/π**

The circumference of the circle is:

**C = πd**

**Where:**

**d = diameter **

**C = Circumference **

**π = ****ratio of a circle’s circumference to its diameter**

The diameter to circumference calculator provides an easy procedure to calculate diameter from circumference.

Let’s suppose the diameter of a circle is 10 cm, then what is its circumference?

**Given:**

**D = **10 cm

**C =?**

**Solution:**

**C = πd**

**C = (3.14)(10)**

**C = 31.416 cm**

The circumference of a circle to diameter conversion in other units:

mm |
m |
km |
in |
ft |
yd |
mi |

314.159 | 0.314 | 0.000314 | 12.37 | 1.031 | 0.34357 | 0.000195 |

You can check all the conversion with our online free circumference to diameter calculator to make more measurements precise and accurate.

Let’s suppose the circumference of the circle is 60, then calculate diameter from circumference.

Given:

C = 60 cm

d = ?

Sol:

**d = C/π**

**d = 60/π**

d = 19.099 cm

Diameter of circle from circumference conversions in other units:

mm |
m |
km |
in |
ft |
yd |
mi |

190.986 | 0.191 | 0.000191 | 7.52 | 0.627 | 0.20886 | 0.000119 |

Our calculator does conversion from diameter to circumference in no time if provided with the following inputs:

**Input:**

- Enter the circumference and choose the unit
- Tap the
**Calculate**

**Output:**

- Diameter of circle
- Other conversion units

Circumference = 2×π×r

C = 2×3.14×24

C = 150.72 inches

- Find the radius using the area of the circle formula (A = πr2).
- Now, substitute the radius value in the circumference formula (C = 2πr) to get the answer.

If the area of a circle is given, then the formula to calculate the perimeter or circumference of a circle is given by: C = 2√(πA) units.

As we know, the Circumference of a circle if its diameter is given = π × d units.

Substituting d = 7 cm in the formula, we get

C = π × 7 = 7π units.

From the source of Wikipedia: Circumference, Circle