28 US fluid ounces to US cups
3.500 cup
28 fl oz = 3.500 cup.
US cups
3.500cup
28 fl oz = 3.500 cup
In short
How many US cups is 28 US fluid ounces?
28 fl oz = 3.500 cup. 1 US fluid ounce = 0.125000 US cups, so the working is 28 × 0.125000 = 3.500.
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 fluid ounce = 0.125000 US cups 28 × 0.125000 = 3.500
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 (cup) | Off by |
|---|---|---|
| Whole number | 4 | +0.50000 |
| 1 decimal | 3.5 | exact |
| 2 decimals | 3.50 | exact |
Round trip: take 3.500 cup back the other way and you land on 28.0000 fl oz — a drift of 0.0000 fl oz. That gap is the rounding, not the conversion.
Frequently asked questions
What is 28 US fluid ounces in US cups?
28 US fluid ounces is 3.500 US cups. 1 US fluid ounce = 0.125000 US cups, so the working is 28 × 0.125000 = 3.500.
How accurate is 3.500 cup?
Rounding to 3.500 cup and converting straight back gives 28.0000 fl oz, a drift of 0.0000 fl oz from the 28 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
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