16 US cups to US fluid ounces
128.00 fl oz
16 cup = 128.00 fl oz.
US fluid ounces
128.00fl oz
16 cup = 128.00 fl oz
In short
How many US fluid ounces is 16 US cups?
16 cup = 128.00 fl oz. 1 US cup = 8.000000 US fluid ounces, so the working is 16 × 8.000000 = 128.00.
The working
The factor below is an exact definition rather than a measurement, so nothing is approximated in the arithmetic. The only rounding on this page happens where a number is displayed.
1 US cup = 8.000000 US fluid ounces 16 × 8.000000 = 128.00
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (fl oz) | Off by |
|---|---|---|
| Whole number | 128 | exact |
| 1 decimal | 128.0 | exact |
| 2 decimals | 128.00 | exact |
Round trip: take 128.00 fl oz back the other way and you land on 16.0000 cup — a drift of 0.0000 cup. That gap is the rounding, not the conversion.
Frequently asked questions
What is 16 US cups in US fluid ounces?
16 US cups is 128.00 US fluid ounces. 1 US cup = 8.000000 US fluid ounces, so the working is 16 × 8.000000 = 128.00.
How accurate is 128.00 fl oz?
Rounding to 128.00 fl oz and converting straight back gives 16.0000 cup, a drift of 0.0000 cup from the 16 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
Cups to Ounces Converter
Convert US cups to fluid ounces — the eight-ounce cup, and where the metric cup differs.
Open the cups to ounces converter →