How many gallons are in 32 kg?

Answer 1

Technically, none.
Kilograms are a measure of mass, gallons are a measure of volume.
You would need to know the density of the substance to convert the terms.

Answer 2

To convert kilograms to gallons, you need to know the density of the substance being measured. Different substances have different densities, so there is no direct conversion from kilograms to gallons.