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Circumference of a Sphere Calculator

LAST UPDATE: November 7th, 2024

Method #1 – Circumference from the volume

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Formula – How to calculate the circumference of a sphere from the volume

Step 1: Calculate the radius

Radius = 3√((3 x Volume) ÷ (4 x π))

Step 2: Calculate the circumference

Circumference = π2r

Example

A sphere has a volume of 10

Radius = 3√((3 x 10) ÷ (4 x π))

Radius = 3√((3 x 10) ÷ (4 x 3.14159))

Radius = 3√(30 ÷ 12.56636)

Radius = 3√(2.38733)

Radius = 3√(2.38733)

Radius = 1.33651

Circumference = π x 2 x 1.33651

Circumference = 3.14159 x 2 x 1.33651

Circumference = 8.39753

Method #2 – Circumference from the surface area

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Formula – How to calculate the circumference of a sphere from the surface area

Step1: Calculate the radius

Radius = √(Area ÷ 4π)

Step 2: Calculate the circumference

Circumference = π2r

Example

A sphere has a surface area of 10

Radius = √(10 ÷ (4 x 3.14159))

Radius = √(10 ÷ 12.56636)

Radius = √0.795775

Radius = 0.89206

Circumference = π x 2 x 0.89206

Circumference = 3.13159 x 2 x 0.89206

Circumference = 5.60497

Method #3 – Circumference from the radius

Calculator

Formula – How to calculate the circumference of a sphere from the radius

Circumference = π2r

Example

A sphere has a radius of 10

Circumference = π x 2 x 10

Circumference = 3.14159 x 2 x 10

Circumference = 62.8318

Method #4 – Circumference from the diameter

Calculator

Formula – How to calculate the circumference of a sphere from the diameter

Circumference = πd

Example

A sphere has a diameter of 10

Circumference = π x 10

Circumference = 3.14159 x 10

Circumference = 31.4159