Formula and example
How it is calculated
V=πr²h, L=2πrh, S=2πr²+2πrh. The axial-section diagonal is √[(2r)²+h²].
Worked example
A cylinder with radius 3 cm and height 10 cm has volume 90π ≈ 282.7433 cm³ and surface area 78π ≈ 245.0442 cm².
Things to check
- The surface area includes both circular ends. For an open container, subtract the missing end.
- Wall thickness, material thickness and a filling allowance are not included.
Frequently asked questions
How do I convert cm³ to litres?
1,000 cm³ equals 1 litre. Divide the calculated geometrical volume by 1,000.