Cylinder Calculator
Enter the radius and height to find a cylinder's volume and total surface area.
Reviewed by the WorldCalcs team · Methodology · Last reviewed: June 2026
Volume
282.7433388
V = πr²h
Total surface area
245.044227
A = 2πr(r + h)
What is a cylinder?
A cylinder is a solid with two identical circular ends joined by a straight side, like a can or a pipe. It is described by the radius of its circular end and its height. From these you can find its volume (how much it holds) and its surface area (the total area of its outside).
The cylinder formulas
With radius r and height h: the volume is V = πr²h — the area of the circular base times the height. The total surface area is the two circular ends plus the curved side: A = 2πr² + 2πrh, which is the same as 2πr(r + h).
Example
A cylinder with radius 3 and height 10 has a volume of π × 3² × 10 ≈ 282.74, and a total surface area of 2π × 3 × (3 + 10) ≈ 245.04.
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Results are estimates and may contain errors — for general information only, not professional advice. Always verify before relying on them. Disclaimer
How to use
Type positive values for the radius and height. The calculator returns the volume (πr²h) and total surface area (2πr(r + h)) instantly.
Values are rounded to about 6 significant digits using the standard constant π ≈ 3.14159.
Frequently asked questions
How do you find the volume of a cylinder?+
What is the surface area of a cylinder?+
What is the curved (lateral) surface area?+
Should I use the radius or the diameter?+
What units does the volume use?+
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