No, it is an imperial unit of measure.
The metric unit for a gallon of milk is liters.
liter
None, really, because a gallon is not a metric unit. A litre is the appropriate unit to use for measuring volumes.
Since gallon is a volume unit and the metric ton is a weight unit there is no possible conversion factor. It all depends on the density of the material.
millimetres (centimetres could also be used)
Nothing. It is an abbreviation for gallon, but the gallon is NOT part of the metric system.
Milliliter.
liter(metric) gallon(customary)
The litre. It's metric. They went metric in the 60s.
Yes. Four quarts to a gallon. An imperial gallon = 4.546 Liters. A U.S. gallon = 3.7854 Liters.
Kilograms +++ That is the correct metric unit of mass to use, but you would not normally mix unit systems like that. You'd either convert the gallon to litres, or stick to Imperial for both. ' So a gallon of milk (US or UK gallon) weighs a certain number of pounds; a litre of milk weighs a certain number of kilogrammes.
The metric unit is a millilitre. The metric unit is a millilitre. The metric unit is a millilitre. The metric unit is a millilitre.