First of all you measure length with millimeters not volume. But 1 cup is 2,5 decilitre and 250 milliliters.
You don't - millimeters is length.
None. Millimeters are units of length and cups are units of volume.
Liquids cannot really be measured in millimeters. Millimeters are a measure for length. Liquids are best measured by volume. In the metric system, milliliters are a very nice way to measure volume. There are 236.6 (two hundred thirty-six point six) milliliters in a cup of water.
That is 1.5 cups
68 milliliters = 0.287419193 US cups
one gallon
thais 0.883 cup
About two cups
The recipe calls for 3 1\2 cups of cherries and 4 cups of sugar and a box of pectin, I have 2 cups of cherries how would I down size the rest?
2 and 3/4
If a baker doubles a recipe that calls for 6-2/3 cups of flour, how many cups of flour will be needed in all?
16oz is 2 cups