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How Many Liters Are in a Gallon?


The humble gallon, or 3.78 liters

Another question I recently received on the reference desk at the library. (more recent was How much does a barbell weigh?) I write most of these down as I get them and then answer them here on the blog as well.

How many liters are in a gallon? The answer is 3.78541178 liters if you’re one of those people who just can’t be satisfied by an answer that doesn’t go out to eight decimal places.

I get quite a lot of conversion table answers. Usually from kids who are working on assignments–or who want us to do their assignments for them.


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