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Surface Area of Hemisphere Calculator

Hemisphere Surface Area Calculator

Need a quick and reliable way to calculate the surface area of a hemisphere? Our Hemisphere Surface Area Calculator makes it easy. Simply enter the radius, and the calculator instantly gives you the total surface area. Whether you’re a student solving geometry problems, a teacher preparing lessons, or an engineer working with spherical structures, this tool ensures accuracy and saves you valuable time.

What is the Surface Area of a Hemisphere?

A hemisphere is half of a sphere. It has two surfaces:
Curved Surface Area (CSA) = 2πr²
Base Area (circle) = πr²

So, the Total Surface Area (TSA) of a hemisphere is:
TSA = CSA + Base Area = 2πr² + πr² = 3πr²

Where: r = radius of the hemisphere
👉 Our calculator uses this formula to instantly find the surface area of any hemisphere.

How Does the Hemisphere Surface Area Calculator Work?

  1. Enter the radius (r) of the hemisphere.
  2. Click Calculate.
  3. The calculator applies the formula 3πr².
  4. The total surface area is displayed instantly.

No need to do the math manually — the tool handles it for you with complete accuracy.

Examples of Hemisphere Surface Area Calculations

Radius = 5 cm → TSA = 235.61 cm²
Radius = 7 cm → TSA = 461.81 cm²
Radius = 10 cm → TSA = 942.47 cm²
Radius = 2 m → TSA = 37.69 m²
Radius = 12 cm → TSA = 1357.16 cm²
Radius = 15 cm → TSA = 2,120.57 cm²
Radius = 20 cm → TSA = 3,769.91 cm²

Features of Our Hemisphere Surface Area Calculator

✅ Quick and accurate calculation of hemisphere surface area
✅ Uses the standard formula 3πr² for total area
✅ Works instantly for small and large radius values
✅ Free to use — no signup required
✅ Compatible with desktop, tablet, and mobile devices
✅ Simple and user-friendly interface

Who Should Use This Calculator?

Students & Teachers – For learning and solving geometry problems
Engineers & Architects – For designing dome-shaped or spherical structures
Construction Professionals – For material estimation in hemispherical projects
Researchers & Mathematicians – For quick verification of surface area formulas
DIY Enthusiasts – For projects involving half-sphere objects

Why Use an Online Hemisphere Surface Area Calculator?

Calculating the surface area of a hemisphere manually requires applying formulas and working with π, which can be time-consuming and error-prone. A small mistake in squaring the radius or multiplying by π can lead to wrong results.
Our Hemisphere Surface Area Calculator simplifies the process. Just enter the radius, and the tool instantly provides the correct total surface area.

Practical Applications

Education – Geometry classes, math homework, and exam preparation
Architecture – Designing domes, skylights, and hemispherical structures
Engineering – Used in fluid mechanics, material science, and product design
Construction – Calculating materials for half-sphere structures like tanks or coverings
Everyday Use – DIY crafts, 3D printing, and projects involving hemispheres

✅ The Hemisphere Surface Area Calculator is a must-have tool for anyone working with geometry and spherical shapes. From classrooms to construction sites, it provides instant, reliable, and accurate results.

👉 Try our Hemisphere Surface Area Calculator today on Hive Calculator and make your geometry calculations simple, fast, and stress-free.