The quart(qt) is an English unit of volume equal to a quarter gallon.
A cup(c or C) is a unit of volume measurement of volume equal to 16 tablespoons. A US cup is about 237ml.
Formula to convert c to qt.
To convert a c to qt, multiply the volume by the conversion ratio.
We know that 1 US cup is equal to 0.25 US liquid quart.
Therefore, to convert c to qt, we multiply the c value 0.25 or divide it by 4.
Volume in quarts = Volume in Cups x 0.25
Convert 20 US cups to US liquid quart.
= 20 x 0.25
= 5 US liquid quarts.