Inches to gallons in 55 gallon drum

[billcw3]

I am looking for a way to covert lets say, 8 inches of oil in a standard 55 gallon drum to tell me how many gallons that is. Can someone please help with this?

[Guest]

Do you know the original fill height in the drum? There would normally be a little head space at the top for expansion. If not, just estimate a couple of inches off the drum height.

remaining height/original height = remaining gallons/55 gallons

This will be very accurate if you know the original fill height, fairly accurate if estimating.

[James]

For a standard 55 gallon drum we have found the original fill level to be 32". So, we calculate 1.72 gallons/inch.

[Guest]

I use 1.7 gallons per inch for 55 gallon drums. does anybody know what the figure is for 30 gallon drums?

[Chace]

I calculated 1.56 gallons per inch on a 19.25x19.25x29.5 drum