12 US fluid ounces to milliliters
354.88 mL
12 fl oz = 354.88 mL.
milliliters
354.88mL
12 fl oz = 354.88 mL
In short
How many milliliters is 12 US fluid ounces?
12 fl oz = 354.88 mL. 1 US fluid ounce = 29.573530 milliliters, so the working is 12 × 29.573530 = 354.88.
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 12 × 29.573530 = 354.88
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 | 355 | +0.11765 |
| 1 decimal | 354.9 | +0.01765 |
| 2 decimals | 354.88 | −0.00235 |
Round trip: take 354.88 mL back the other way and you land on 11.9999 fl oz — a drift of 0.0001 fl oz. That gap is the rounding, not the conversion.
What 12 fl oz looks like
12 fl oz
The standard American beverage can is 12 fl oz, which TTB lists as a 355 mL standard of fill.
Frequently asked questions
What is 12 US fluid ounces in milliliters?
12 US fluid ounces is 354.88 milliliters. 1 US fluid ounce = 29.573530 milliliters, so the working is 12 × 29.573530 = 354.88.
How accurate is 354.88 mL?
Rounding to 354.88 mL and converting straight back gives 11.9999 fl oz, a drift of 0.0001 fl oz from the 12 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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