Cylinder Calculator
Calculate the volume and surface area of a cylinder from its radius and height, with a 3D diagram.
How it works
- 1Enter the cylinder’s base radius and height.
- 2Read the volume (π r² h) and total surface area (2π r (r + h)).
- 3Check the 3D diagram for the labelled radius and height.
Use cases
- Find the capacity of a can, pipe, or tank.
- Estimate material to wrap or coat a cylinder.
- Check geometry homework on cylinders.
Frequently asked questions
What is the volume of a cylinder?
Volume = π × radius² × height. A radius of 2 and height of 5 give about 62.83 cubic units.
What is the total surface area?
Two circular ends plus the side: 2π r² + 2π r h = 2π r (r + h). Radius 2, height 5 give about 87.96 square units.
Do you include both ends?
Yes, this is the total surface area including both circular caps. For an open tube, subtract one or both end areas (π r² each).
Related tools
See all →Calculate the area and perimeter of a rectangle from its width and height, with a labeled diagram.
Calculate the area and circumference of a circle from its radius, with a labeled diagram.
Calculate the area (Heron’s formula) and perimeter of a triangle from its three sides.
Calculate the area and perimeter of a trapezoid from its two parallel sides, height, and legs.