Cylinder Calculator
Compute a cylinder's volume, surface area and lateral area from radius and height.
Input Data
Radius
Height
Results
Computed volume and area.
282.743
Explanatory note about the result.
體積 = πr²h = 282.743；表面積 = 2πr(h+r) = 245.044。
At a glance:V = πr²h; lateral area = 2πrh; total area = 2πr(r+h). Complements cylinder-volume and cone.
Formula
V = πr²h.
A = 2πr(r+h).
How to Use
- Enter radius and height.
- The tool returns volume and area.
Case Studies
r=3, h=4
V=36π≈113.1; A=2π·3·7=42π≈131.9.
FAQ
Lateral vs total area?
Lateral excludes the caps; total includes both circular bases.
Related Tools
References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.