A metric cup is defined as 250 millilitres. One US cup = 236.588238 milliliters.
There are 236.59 milliliters in a U.S. cup. There are 250 milliliters in a metric cup.
Note: There are comments associated with this question. See the
discussion page
to add to the conversation.
This answer is closed to changes. This is done in rare cases when questions are being vandalized or answers have become debates. E-mail reopen @ answers.com (no spaces) if you would like it to be reopened.