Diameter of a Cylinder Calculator

Calculate Cylinder Diameter

Enter if known. Overrides Volume/Height and Circumference calculations.
Enter if known. Overrides Volume/Height calculation.
Requires Height (h).
Requires Volume (V).

Quickly determine the diameter of any cylinder with our versatile online calculator. Input the volume and height, radius, or circumference to instantly find the diameter. Perfect for students, engineers, and DIY projects needing precise cylindrical measurements.

Formula:

To calculate the diameter (D) of a cylinder:

  • From Radius (r): D = 2r
  • From Circumference (C): D = C / π
  • From Volume (V) and Height (h): D = √((4V) / (πh))
Where π (Pi) ≈ 3.14159.

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