20 US fluid ounces to milliliters
591.47 mL
20 fl oz = 591.47 mL.
milliliters
591.47mL
20 fl oz = 591.47 mL
In short
How many milliliters is 20 US fluid ounces?
20 fl oz = 591.47 mL. 1 US fluid ounce = 29.573530 milliliters, so the working is 20 × 29.573530 = 591.47.
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 = 29.573530 milliliters 20 × 29.573530 = 591.47
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 (mL) | Off by |
|---|---|---|
| Whole number | 591 | −0.47059 |
| 1 decimal | 591.5 | +0.02941 |
| 2 decimals | 591.47 | −0.00059 |
Round trip: take 591.47 mL back the other way and you land on 20.0000 fl oz — a drift of 0.0000 fl oz. That gap is the rounding, not the conversion.
What 20 fl oz looks like
20 fl oz
The British pint is twenty imperial fluid ounces, 568 mL, while twenty US fl oz comes to 591 mL.
Frequently asked questions
What is 20 US fluid ounces in milliliters?
20 US fluid ounces is 591.47 milliliters. 1 US fluid ounce = 29.573530 milliliters, so the working is 20 × 29.573530 = 591.47.
How accurate is 591.47 mL?
Rounding to 591.47 mL and converting straight back gives 20.0000 fl oz, a drift of 0.0000 fl oz from the 20 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
Fluid Ounces to mL Converter
Convert US fluid ounces to milliliters — metric measuring jugs and bottle labels.
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