How to convert 891 milliliters 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 0.26553112962963 times 891 milliliters.
It can also be expressed as: 891 milliliters is equal to US customary cups.
An approximate numerical result would be: eight hundred and ninety-one milliliters is about three point seven seven US customary cups, or alternatively, a US customary cup is about zero point two seven times eight hundred and ninety-one 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.