how many cup in a gallon of milk
1 Gallon [UK] = 18.18436 Cups [Metric]. For other volume unit conversions, please go to Volume Conversion. Fluid and dry gallons to cups conversion factors are listed below. To find out how many cups in gallons, multiply by the factor or instead, use the converter below for fluid gallons.1 Gallon [Fluid, US] = 16 Cups [US]. For cup to gallon converter, please go to cup to gallon.Converter. Enter a US fluid gallon value that you want to convert into cups and click on the convert button.Gallon is an imperial and U.S. customary unit. There is one type of gallon in imperial system and 2 types (liquid and dry) in united states customary system.luid and dry gallons to cups conversion factors are listed below. To find out how many cups in gallons, multiply by the factor or instead, use the converter below for fluid gallons. 1 Gallon [Fluid, US] = 16 Cups [US].