Cup (unit)

cup
A simple plastic measuring cup, capable of holding the volume one metric cup with a scale for US fluid ounces
General information
Unit system	US customary units
Unit of	Volume
Symbol	cup
Conversions (US)
1 US cup in ...	... is equal to ...
SI units	236.588 mL

The cup is a cooking measure of volume, commonly associated with cooking and serving sizes. In the US customary system, it is equal to one-half US pint (236.6 ml). Because actual drinking cups may differ greatly from the size of this unit, standard measuring cups may be used, with a metric cup commonly being rounded up to 240 millilitres (legal cup), but 250 ml is also used depending on the measuring scale.