Question
What shapes does this surface area calculator support?
This version supports cubes, spheres, and cylinders from their most common dimensions.
Math
Use OmniCalc's surface area calculator to switch between cube, sphere, and cylinder modes and calculate surface area quickly, with volume alongside each result.
Surface area calculator
Switch between cube, sphere, and cylinder modes to calculate surface area fast, with volume shown alongside each result.
Why this result matters
A strong geometry/mensuration follow-on from area and circle pages that broadens OmniCalc into common 3D shape measurement intent. Use the tool above to enter a few clear inputs and get a practical answer you can use right away.
This surface area calculator helps students find the outside area of common 3D shapes like cubes, spheres, and cylinders. It also shows volume, making it useful for geometry homework, mensuration practice, and quick checks.
Formula and method
The calculator uses 6a² for cubes, 4πr² for spheres, and 2πr(r + h) for cylinders, with matching volume formulas for each shape.
Example
If you choose cube mode with edge length 5, the calculator returns surface area 150 and volume 125.
FAQ
Short answers to the questions people often ask before or after using the tool.
Question
This version supports cubes, spheres, and cylinders from their most common dimensions.
Question
Volume is included as a useful companion measurement so you can compare the outside surface with the size of the solid.
Question
Yes. You can toggle between cube, sphere, and cylinder modes directly in the calculator.
Related calculators
If the next question is close to this one, these are the best pages to open next.
Math
Use OmniCalc's volume calculator to switch between cube, sphere, and cylinder modes and calculate volume quickly, with surface area alongside each result.
Math
Use OmniCalc's area calculator to switch between rectangle, triangle, and circle modes and calculate area quickly from the most common inputs.
Math
Use OmniCalc's circle calculator to calculate area, circumference, diameter, semicircle area, and quarter-circle area from a radius instantly.
Math
Use OmniCalc's scientific calculator for powers, roots, logs, trig, and core arithmetic in one place.