Construction

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Concrete Cylinder Calculator.

Calculate cylinder volume and surface area.

On-device calculationNo signup
01

Set your values

Results update as you type.

Radius: 2

Radius

0.000
height: 10

height

0.000
Volume: 125.664

Volume

0.000
Lateral area: 125.664

Lateral area

0.000
Surface area: 150.796

Surface area

0.000

Use Cases

Estimating concrete for cylindrical columns

Determine the volume of concrete needed to fill a cylindrical column or pier. Enter the radius and height in feet to get the cubic feet required.

Example: A column with radius 1 ft and height 10 ft needs about 31.4 cubic feet of concrete.

Calculating formwork surface area

Find the surface area of a concrete cylinder to estimate the amount of formwork or coating needed. Useful for planning materials.

Example: For a cylinder with radius 2 ft and height 5 ft, surface area is about 87.96 square feet.

Frequently Asked Questions

How do I calculate the volume of a concrete cylinder?
Enter the radius and height in feet. The calculator uses the formula V = π × radius² × height to compute the volume in cubic feet. This is the amount of concrete needed to fill the cylinder.
What is the surface area of a concrete cylinder?
The surface area is the total area of the cylinder's outer surface, including the top, bottom, and side. It is calculated using the formula A = 2πr² + 2πrh, where r is radius and h is height. The result is in square feet.
Can I use this calculator for any cylinder shape?
Yes, as long as the cylinder has a circular cross-section and uniform radius and height. Enter the radius and height in feet to get volume and surface area. This is useful for estimating concrete for columns, footings, or other cylindrical structures.

Tips & Common Mistakes

Tips

  • Measure the radius and height in feet accurately. Use the same units for both to get correct results.
  • If you have the diameter, divide it by 2 to get the radius before entering.
  • For concrete volume, consider adding a waste factor (e.g., 10%) to account for spillage or over-excavation.
  • Use the surface area result to estimate the amount of form release agent or paint needed.

Common Mistakes to Avoid

  • Entering the diameter instead of the radius. The calculator expects the radius, so divide the diameter by 2.
  • Mixing units, such as entering radius in inches and height in feet. Ensure both are in feet.
  • Forgetting to include the top and bottom surfaces when calculating surface area. The calculator includes them.

Last updated: August 13, 2026