Gallons to Milliliters Conversion

How many milliliters in a gallon?

Fluid and dry gallons to milliliters volume units conversion factors are listed below. To find out how many milliliters in gallons, multiply by the conversion factor or use the converter. If scroll down, you may also create and print your own custom conversion table create your table.

1 Gallon [Fluid, US] = 3785.41178 Milliliters

1 Gallon [UK] = 4547 Milliliters

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. It is widely used in daily life, such as measuring the fuel efficiency as miles per gallon, etc. The abbreviation is "gal".

Milliliter is a volume unit in metric system. Spelled as millilitre in europe. The abbreviation is "mL".

For other volume unit conversions, please go to Volume Conversion


Enter a US fluid gallon value that you want to convert into milliliters and click on the "convert" button.

Create Custom Conversion Table