In Money and the Mechanism of Exchange (1875), William Stanley Jevons famously analyzed money in terms of four functions: a medium of exchange, a common measure of value (or unit of account), a standard of value (or standard of deferred payment), and a store of value.
1 Cup [US] = 236.588237 Milliliters. 1 Cup [Metric] = 250 Milliliters. also. 1 Cup [Metric] = 1.057 Cup [US] For example, to calculate how many milliliters of water in a half (1/2) US cup, multiply the cup value by the conversion factor, (1/2) * 236.588237 = 118.3 ml. of water.
The metric cup is 250 mL and 1 US cup is 236.5 mL. The abbreviation is c. Tablespoon is a volume unit and 1 US tablespoon is about 15 mL and 1/2 fluid ounces.