How to convert 630 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 6.00859013333333 times 630 milliliters.
It can also be expressed as: 630 milliliters is equal to US gallons.
An approximate numerical result would be: six hundred and thirty milliliters is about zero point one seven US gallons, or alternatively, a US gallon is about six point zero zero times six hundred and thirty 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.