There are 36 ounces in 4.5 cups. If you are using imperial measure a large imperial (1.25) cup has ten ounces {half pint} and 4.5 of these cups would have 45 ounces.
360 16-oz cups in 45 gallons.
45 milliliters is 1.52 fluid ounces.
45 grams
I assume you mean 4 and a half fluid ounces, not 4 and a half weight ounces. A cup has 8 ounces. Therefore 4 and a half ounces is 4.5/8 cups. 4.5/8 = 45/80 = 9/16 = 0.5625 cups
35 mL is about 1.183 US fluid ounces.
45 mL = 1.52 US fluid ounces.
45 milliliters is 1.52 ounces. (US)
45 ounces is 2.81 pounds.
45 fluid ounces is about 1.41 quarts.
45 cc of water is 1.587 ounces.
45 cups