Cylinder Calculator
Find the volume and surface area of a right circular cylinder from its radius and height.
Inputs explained
- Radius — Radius of the circular cross-section.
- Height — Height of the cylinder.
How to use it
- Fill in the fields above — each input has a hint describing exactly what to enter
- Press Calculate to get your result instantly, right on this page
- Copy the result, save the tool to favorites, or share and embed it anywhere
Understanding the result
Example: A cylinder with radius 3 and height 5 has volume ≈ 141.37 and total surface area ≈ 150.80.
Frequently asked questions
Does the surface area include both the top and bottom circles? Yes, total surface area accounts for both circular ends plus the curved lateral surface; a cylinder open at one or both ends would need a different, smaller surface area.
How much does doubling the radius affect the volume compared to doubling the height? Doubling the radius quadruples the volume since radius appears squared in the volume formula, while doubling the height only doubles the volume, since height is a linear term.
Is the Cylinder Calculator free to use? Yes — it is completely free, with no sign-up, no download and no usage limits. You can use it as often as you need.
Is my data private? Yes. The calculation runs entirely in your browser — the values you enter are never sent to our servers, stored or shared with anyone.
What information do I need? Just the following: Radius, Height. Each field includes a hint explaining exactly what to enter.
Can I use it on my phone? Yes — the tool is fully responsive and works on any device, and the same calculator is available in the EasyWorkCalcs mobile app.
Privacy
Everything you enter into the Cylinder Calculator is processed entirely in your browser. Nothing is uploaded, stored or shared — your data stays on your device.