Cylinder Calculator

This calculator finds a cylinder's volume and surface area for people sizing pipes, cans, tanks, and similar objects.

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Enter the radius of the circular base and the cylinder's perpendicular height. Both measurements must use the same unit.

Volume is V = pi × radius^2 × height. Total surface area is A = 2 × pi × radius^2 + 2 × pi × radius × height.

Worked example

A cylinder with a radius of 3 cm and height of 10 cm has a volume of pi × 3^2 × 10 = 282.74 cm³. Its total surface area is 2 × pi × 3^2 + 2 × pi × 3 × 10 = 245.04 cm².

Common questions

Does surface area include both circular ends?

Total surface area includes both ends and the curved side. For an open cylinder, subtract the area of each missing end.

How do I find only the curved surface area?

Use A = 2 × pi × radius × height. This excludes both circular bases.

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