Surface Area of Hollow Cylinder Calculator

Inner Diameter

Outer Diameter

Height

Surface Area of Hollow Cylinder Calculator

Looking for an easy way to calculate the surface area of a hollow cylinder? Our Hollow Cylinder Surface Area Calculator provides instant and accurate results. Simply enter the inner diameter, outer diameter, and height, and the calculator automatically computes the total surface area. This tool is perfect for students, teachers, architects, engineers, and professionals who work with pipes, tubes, and hollow structures.

📏 What is a Hollow Cylinder?

A hollow cylinder is a three-dimensional solid with two cylindrical surfaces, an outer cylinder and an inner cylinder sharing the same axis. Common examples include pipes, tubes, drinking straws, storage tanks, and industrial drums.
The total surface area (TSA) of a hollow cylinder is the sum of:
• Outer curved surface
• Inner curved surface
• Top circular ring (annulus)
• Bottom circular ring (annulus)

👉 Formula:
TSA = 2πh(R + r) + 2π(R² – r²)
Where:
R = Outer Radius (Outer Diameter ÷ 2)
r = Inner Radius (Inner Diameter ÷ 2)
h = Height of the cylinder

⚖️ How Does the Hollow Cylinder Surface Area Calculator Work?

1. Enter the Inner Diameter.
2. Enter the Outer Diameter.
3. Enter the Height (h).
The calculator automatically converts diameters into radii.
It applies the formula 2πh(R + r) + 2π(R² – r²).
The total surface area is displayed instantly.

📚 Examples of Hollow Cylinder Surface Area Calculations

Example 1: Inner Diameter = 6 cm, Outer Diameter = 10 cm, Height = 15 cm

r = 3 cm, R = 5 cm
TSA = 2π × 15 × (5 + 3) + 2π(25 – 9) = 272π ≈ 854.51 cm²

Example 2: Inner Diameter = 8 cm, Outer Diameter = 12 cm, Height = 20 cm

r = 4 cm, R = 6 cm
TSA = 2π × 20 × (10) + 2π(36 – 16) = 240π ≈ 753.98 cm²

Example 3: Inner Diameter = 10 cm, Outer Diameter = 14 cm, Height = 25 cm

r = 5 cm, R = 7 cm
TSA = 2π × 25 × (12) + 2π(49 – 25) = 648π ≈ 2,036.22 cm²

Example 4: Inner Diameter = 12 cm, Outer Diameter = 20 cm, Height = 30 cm

r = 6 cm, R = 10 cm
TSA = 2π × 30 × (16) + 2π(100 – 36) = 1,088π ≈ 3,418.38 cm²

Example 5: Inner Diameter = 15 cm, Outer Diameter = 25 cm, Height = 40 cm

r = 7.5 cm, R = 12.5 cm
TSA = 2π × 40 × (20) + 2π(156.25 – 56.25) = 1,800π ≈ 5,654.87 cm²

✨ Features of Our Hollow Cylinder Surface Area Calculator

✅ Uses correct formula with diameters and height

✅ Instant and accurate calculations

✅ Works for both small and large values

✅ Free to use, no sign-up needed

✅ Mobile-friendly and easy interface

✅ Ideal for students, engineers, and architects

👩‍💼 Who Should Use This Calculator?

Students & Teachers – For geometry lessons and practice problems

Engineers & Designers – For pipes, tubes, and machine components

Construction Professionals – For material estimation of cylindrical structures

Researchers & Scientists – For experimental models involving hollow shapes

Everyday Users – For learning and practical DIY projects

💡 Why Use an Online Hollow Cylinder Surface Area Calculator?

Manual calculations require careful handling of inner and outer radii, height, and large numbers involving π. Mistakes are common. Our calculator saves time and ensures accuracy by instantly applying the formula with your given inputs.

🌍 Practical Applications

Education: Teaching 3D geometry

Architecture: Designing hollow columns and pipes

Engineering: Measuring pipes, ducts, and tanks

Manufacturing: Material planning for hollow cylindrical parts

DIY Projects: Modeling and craft designs

✅ The Hollow Cylinder Surface Area Calculator is a powerful and easy-to-use tool for quick geometry calculations.

👉 Try our Hollow Cylinder Surface Area Calculator today on Hive Calculator and simplify your math and engineering work instantly.