How to convert 660 centiliters to US customary cups?
We know (by definition) that:
We can set up a proportion to solve for the number of US customary cups.
Now, we cross multiply to solve for our unknown :
Conversion in the opposite direction
The inverse of the conversion factor is that 1 US customary cup is equal to 0.0358467025 times 660 centiliters.
It can also be expressed as: 660 centiliters is equal to US customary cups.
An approximate numerical result would be: six hundred and sixty centiliters is about twenty-seven point eight nine US customary cups, or alternatively, a US customary cup is about zero point zero four times six hundred and sixty centiliters.
 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.