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Questions and answers on how to convert things from one unit or system to another

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converting gallons to kilograms

Tue Nov 06, 2007 3:40 am

I need to convert 5 gallons of liquid material to kilograms since we stock it in kilograms.

Tue Nov 06, 2007 7:19 pm

Well, I doubt anyone publishes "mixed" density figures like kilograms per gallon.

First, convert in to liters (3.7854 L/US gallon). Then, from the name of the material, look up its density in some reference manual. It will be given in kg/L or g/mL (numerically equal).

Multiply by the density and you are done. There is no "universal" conversion, as a a liter of air ,feathers, water, and lead have VERY different weights.