Measuring the whole picture - Volume

I wonder how the site reports volume for guys whose measurement preference is metric; does it use the appropriate formula to convert cubic centimeters to fluid ounces?

And, by the way, what is the "width" measurement? Oh, wait; I found a formula (Circular Cylinder Calculator) that converts Length v Volume to Radius. Radius*2 = diameter (that is, "width") as reported in the Stats page. The volume Thunder uses to calculate width is cubic inches.

I still wonder why Thundersplace reports Volume in fluid ounces .