For those who build their own fuel cells/airtanks here are some calculations to figure up your gallonage.
To calculate a square or box area you multiply the heightxwidthxlength to get your total cubic inches. There are 231 cubic inches in 1 gallon, so knowing this you divide your total cubic inches by 231 to get your total gallonage.
EXAMPLE. A fuel cell measuring 10'' wide by 10'' long by 10'' tall contains 1000 cubic inches. Divide that by 231 to get 4.32 gallons.
To calculate a cylindrical shape such as a typical airtank you multiply PIxradius(squared)xheight.
Width (diameter) =10"
So the formula is 3.14 x 5^2 x 30 = 2355 sq. Inches which =10.19 Gallons
Created By: lofosho86