How to convert 690 US quarts 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 0.00579710144927536 times 690 US quarts.
It can also be expressed as: 690 US quarts is equal to US gallons.
An approximate numerical result would be: six hundred and ninety US quarts is about zero US gallons, or alternatively, a US gallon is about zero point zero one times six hundred and ninety US quarts.
 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.