In the United States, the customary cup is half of a liquid pint or 8 U.S. Because actual drinking cups may differ greatly from the size of this unit, standard measuring cups are usually used instead. Task: Convert 53 US gallons to US cups (show work) Formula: US gal x 16 US cup Calculations: 53 US gal x 16 848 US cup Result: 53 US gal is equal to 848 US cup. It is traditionally equal to half a liquid pint in either US customary units or the British imperial system but is now separately defined in terms of the metric system at values between 1⁄5 and 1⁄4 of a liter. We can also convert by utilizing the inverse value of the conversion factor. 1 Gallon (US, fluid) 15.1416 metric cups.
The cup is an English unit of volume, most commonly associated with cooking and serving sizes. 1 Gallon (UK, imperial) 16 Cups (UK, imperial) Bearing in mind the 20 difference between the US gallon and imperial gallon, if you're in the UK and looking to do the 'Water Gallon Challenge' you may want to consider the conversion for US gallons to metric cups. There are three definitions in current use: the imperial gallon (≈ 4.546 L) which is used in the United Kingdom and semi-officially within Canada, the United States (liquid) gallon (≈ 3.79 L) which is the commonly used, and the lesser used US dry gallon (≈ 4.40 L). The gallon (abbreviation "gal"), is a unit of volume which refers to the United States liquid gallon. In Canada we used to use quarts & gallons, in the same ratio, but with Imperial measure: 5 cups per quart, 4 quarts per gallon, so 20 cups per gallon. Let's see how both units in this conversion are defined, in this case Gallons and Cups: Gallon (gal)