How many milliliters (mL) are there in a gallon?
There are 3785.41178 milliliters (mL) in a gallon in US and 4547 millilitres in a gallon in UK.
Here is how:
For US:
In United States, by definition 1 gallon is 231 cubic inches (128 US fluid ounces) and 128 US fluid ounces equal to 3785.41 mL.
For Imperial System (UK):
In Imperial system, by definition 1 imperial gallon is 277.4195 cubic inches (160 imperial fluid ounces) and 160 imperial fluid ounces equal to 4547 mL.
How to convert from gallons to milliliters (mL)?
To convert from gallons to milliliters (mL), multiply the number of gallons "x" by 3785.41 for US and multiply by 4547 for UK (imperial system).
For example, to find out how many mL there are in a gallon and a half in US, multiply 1.5 by 3785.41178, that makes 5678.11 mL in 1.5 US gallons.
You may also use this volume units conversion tool to convert between US, imperial gallons and milliliters.
What is a gallon?
Gallon is an imperial and US Customary measurement system volume unit. 1 US fluid gallon is 128 US fluid ounces (3785.41 mL), 1 US dry gallon is 148.94 US fluid ounces (4404.68149 mL) and 1 imperial gallon is 160 imperial fluid ounces (4546.09 mL). The abbreviation is "gal".
What is a milliliter (mL)?
Milliliter (millilitre) is a metric system volume unit. 1 milliliter equals to 1 cubic centimeter. The abbreviation is "mL".
The list for your reference:
1 US Fluid Gallon = 3785.41178 mL
1 US Dry Gallon = 4404.8838 mL
1 Imperial Gallon (UK) = 4547 mL