What is the amount of concrete to fill a cylinder 22 inches in diameter and 5 feet long?

Answer 1

The volume of the cylinder is the area of the end profile (circle) x depth

The area of the end circle is pi (3.14) x radius x radius (radius is 1/2 diameter)

The area of the end circle is 3.14 x 11 x 11 = 380.13 (note: inches squared)

The volume of the cylinder is the area x depth

The depth needs to be expressed in inches for consistancy 5 feet = 60 inches

The volume is 60 x 380.13 = 22807.96 (note inches cubed)

Concrete is usually measured in cubic meters (refered to as 'cube' or 'meters')

Conversion from inches cube to meters cube: There are 0.0254 meters in a inch, There are 0.0254 x 0.0254 x 0.0254 cubic meters in a cubic inch = 0.000016387

22807.96 x 0.000016387 = 0.373 cubic meters

General purpose concrete weighes about 1.6 tonnes per cubic meter so this would weigh 0.598 metric tonne or 598 kg