1 US gallon = 3 785.4118 milliliters
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There are 128 oz in a gallon and 29.5735 milliliters in an oz so there are 3785.41 milliliters in a gallon or 3.78541 liters in a gallon.1 gallon equals 3785.41 milliliters
1 US gallon = 3 785.411 784 milliliters 1 UK gallon = 4 546.09 milliliters
There are 3,785.41 milliliters in a gallon.
1 gallon is equal to approximately 3,785 milliliters.
One US gallon is about 3,785.4 mL