A US cup is equal to approximately 236.6 milliliters (mL). There are other cup measurements used regionally:
- The metric cup commonly used in Canada and some Commonwealth countries equals 250 mL.
- The imperial (UK, pre-1970s) cup size is about 284 mL.
But the standard US cup-to-milliliter conversion widely used is:
1 cup = 236.6 mL.
