Cup (unit)

Not to be confused with drinking cups, or "cup" serving sizes, which may not necessarily correspond with this unit. Cup is a measurement used in bra sizing, and is unrelated.
cup
A simple plastic measuring cup, capable of holding the volume one metric cup with a scale for US fluid ounces
General information
Unit systemUS customary units
Unit ofVolume
Symbolcup
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, it is traditionally 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 being 250 millilitres.