How many gallons will a 29x36 drum hold?

Answer 1

Firstly, your question does not state which dimension is the diameter, and it changes the answer. Secondly, your question does not state which unit of measure is being used and that changes the answer also. So the answerer has to make assumptions that you, the asker, should have provided. Here goes.

Step one is to use your dimensions to calculate the volume of the drum so let's assume that the drum is taller than it is across and that your dimensions are in inches, and that you are interested in US gallons. The formula for the volume of a cylinder is pi * radius2 * height.

In this case that is pi((29/2)2)*36

=pi*((14.5)2)*36

=pi*(210.25)*36

=pi*7569

=3.14159265358979*7569

=23778.7147950211 cubic inches

Step two is to convert cubic inches to gallons. Fortunately, there is a constant coefficient we can use because both are measures of volume. That constant is 0.004329004.

So in this case that is 23778.7147950211 * 0.004329004 = 102.938151462506 gallons.