Cylinder Calculator

Cylinders appear everywhere: tanks, pipes, cans and pillars. Their volume is the base area times the height.

Results update as you type.

Volume

1,539.3804

Curved surface area (CSA)
439.8229715
Total surface area (TSA)
747.6990516
In litres (if in cm)
1.5393804

About this calculator

CSA is the curved side only; TSA adds the two circular ends.

How to use it

  1. Enter the radius.
  2. Enter the height.
  3. Read the results.

The formula

V = πr²h; CSA = 2πrh; TSA = 2πr(r + h)
r
radius
h
height

Worked example

Radius 7, height 10

  1. Volume ≈ 1,539.38.
  2. CSA ≈ 439.82; TSA ≈ 747.70.
  3. In centimetres, that is about 1.54 litres.

What the result means

For a tank, measure inside and use the water tank capacity calculator for litres.

Assumptions

  • All lengths in the same unit.

Limitations

  • Results are rounded to 10 significant figures.

Frequently asked questions

What is the volume of a cylinder?

πr²h.

What is CSA?

Curved surface area, 2πrh.

What is TSA?

Total surface area, 2πr(r + h).

Last reviewed on 3 October 2026. Found a mistake? Tell us.