How many gallons equals 25 lbs?

Answer 1

None, since there can be no conversion.

A gallon is a measure of volume. A pound is a measure of mass. The two measure different things and, according to basic principles of dimensional analysis, conversion from one to the other is not valid.

Answer 2

It depends on the density of the substance being measured in pounds. To convert pounds to gallons, you need to know the substance's specific gravity or density. Different substances have different conversion rates between pounds and gallons.

Answer 3

The only way to convert gallons ( a volume) to pounds (a mass) is to know and use the density of the liquid. Without that, you cannot do the conversion.