Surface Area Calculator

Use the Surface Area Calculators below to calculate the surface area of several common shapes.

➤ Related

• Volume Calculator
• Area Calculator
• Body Surface Area Calculator

Surface Area Calculator – Calculate the Surface Area of Common 3D Shapes

Quickly and accurately compute the surface area of cubes, spheres, cylinders, cones, and other 3D shapes with our free Surface Area Calculator. Perfect for students, engineers, and DIY enthusiasts!

How to Use the Surface Area Calculator

1. Select a Shape: Choose from cube, sphere, cylinder, cone, rectangular prism, or triangular prism.
2. Enter Dimensions: Input the required measurements (e.g., radius, height, side lengths).
3. Calculate: Click the “Calculate” button to get instant results, including step-by-step solutions.

Supported Shapes and Formulas

Shape	Formula	Variables
Cube	6a26a2	aa = side length
Sphere	4πr24πr2	rr = radius
Cylinder	2πr(h+r)2πr(h+r)	rr = radius, hh = height
Cone	πr(r+h2+r2)πr(r+h2+r2​)	rr = radius, hh = height
Rectangular Prism	2(lw+lh+wh)2(lw+lh+wh)	ll = length, ww = width, hh = height
Triangular Prism	bh+l(a+b+c)bh+l(a+b+c)	bb = base, hh = height, ll = length, a,b,ca,b,c = triangle sides

Why Use Our Surface Area Calculator?

✅ No Manual Errors: Eliminate calculation mistakes.
✅ Step-by-Step Solutions: Learn how the result was derived.
✅ Free & Accessible: No signup or fees—just instant answers.
✅ Mobile-Friendly: Works seamlessly on all devices.

Practical Applications

• Academic Use: Solve geometry homework efficiently.
• Construction: Estimate material requirements (e.g., paint, wrapping).
• DIY Projects: Design packaging or custom furniture.

FAQs