Diameter of a Cylinder Calculator

Calculate cylinder diameter using volume, height, surface area, or radius with step-by-step solutions

Calculate Cylinder Diameter

Length of the cylinder

cm³

Volume of the cylinder

Cylinder Calculation Results

Enter valid measurements to calculate the cylinder diameter
Choose your preferred calculation method above

Example Calculation

Water Tank Example

Problem: Cylindrical water tank with volume 60 cm³ and height 8 cm

Given: V = 60 cm³, h = 8 cm

Find: Diameter of the tank

Application: Storage tank design and manufacturing

Solution Steps

Formula: d = 2 × √(V / (π × h))

π × h = π × 8 = 25.133

V / (π × h) = 60 / 25.133 = 2.387

r = √2.387 = 1.545 cm

d = 2 × 1.545 = 3.09 cm

Cylinder Elements

d

Diameter

Width of the circular base

r

Radius

Half the diameter

h

Height

Length of the cylinder

V

Volume

Space inside the cylinder

Formula Reference

From Volume & Height

d = 2√(V/(πh))

From Radius

d = 2r

From Base Area

d = 2√(A/π)

From Lateral Area

d = A_L/(πh)

Volume Formula

V = πr²h

Understanding Cylinder Diameter

What is a Cylinder Diameter?

The diameter of a cylinder refers to the diameter of its circular base. It's the straight line that passes through the center of the base circle and connects two points on the circumference. A cylinder has two identical circular bases with the same diameter.

Why Calculate Cylinder Diameter?

  • Engineering and manufacturing design
  • Storage tank and pipe sizing
  • Material volume calculations
  • Industrial equipment specifications

Mathematical Relationships

V = πr²h

(Volume formula for cylinders)

A cylinder is a 3D geometric shape with two parallel circular bases connected by a curved surface. The diameter is fundamental for calculating volume, surface area, and other cylinder properties.

Key Cylinder Formulas

Volume: V = πr²h

Base Area: A_base = πr²

Lateral Area: A_lateral = 2πrh

Surface Area: A_total = 2πr² + 2πrh

Real-World Applications

  • • Water tanks and storage containers
  • • Pipes and tubing systems
  • • Industrial cylinders and pistons
  • • Food cans and packaging
  • • Oil drums and barrels
  • • Concrete columns and posts

Calculation Methods

  • • Volume and height relationship
  • • Base area (circular area formula)
  • • Lateral surface area calculation
  • • Total surface area (quadratic solution)
  • • Direct radius measurement (×2)

Related Concepts

  • • 3D geometry and solid shapes
  • • Circular geometry and π
  • • Volume and surface area calculations
  • • Engineering design principles
  • • Manufacturing tolerances
  • • Fluid dynamics and flow