How to convert 800 milliliters to US gallons?
We know (by definition) that:
We can set up a proportion to solve for the number of US gallons.
Now, we cross multiply to solve for our unknown :
Conversion in the opposite direction
The inverse of the conversion factor is that 1 US gallon is equal to 4.73176473 times 800 milliliters.
It can also be expressed as: 800 milliliters is equal to US gallons.
An approximate numerical result would be: eight hundred milliliters is about zero point two one US gallons, or alternatively, a US gallon is about four point seven three times eight hundred milliliters.
 The precision is 15 significant digits (fourteen digits to the right of the decimal point).Results may contain small errors due to the use of floating point arithmetic.