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 bwsmith 11-30-2008 01:36 AM

Calculating Gallons

What is the formula for calculating gallons based on dimensions?

 iamntbatman 11-30-2008 01:54 AM

(Length * Width * Height)/231

This is for measurements done in inches.

 Oldman47 11-30-2008 07:45 PM

Another way to get a quick estimate is volume in cubic feet times 7.5 gallons per cubic foot. I can usually do it in my head and am within fractions of a gallon of the real number in a very large tank. No way I can multiply out the larger numbers of cubic inches to divide by 231 but that is closer to the accurate answer.

 bwsmith 11-30-2008 10:24 PM

Thanks. Just wanted to verify that it was the size I remember. I have a shed full of empty ones and it is hard to keep track.

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