30 milliliters to US fluid ounces
1.01 fl oz
30 mL = 1.01 fl oz.
US fluid ounces
1.01fl oz
30 mL = 1.01 fl oz
In short
How many US fluid ounces is 30 milliliters?
30 mL = 1.01 fl oz. 1 milliliter = 0.033814 US fluid ounces, so the working is 30 × 0.033814 = 1.01.
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 milliliter = 0.033814 US fluid ounces 30 × 0.033814 = 1.01
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 | 1 | −0.01442 |
| 1 decimal | 1.0 | −0.01442 |
| 2 decimals | 1.01 | −0.00442 |
Round trip: take 1.01 fl oz back the other way and you land on 29.8693 mL — a drift of 0.1307 mL. That gap is the rounding, not the conversion.
What 30 mL looks like
29.57 mL
One US fluid ounce is 29.5735295625 mL, a 128th of the 3.785411784 L gallon.
Frequently asked questions
What is 30 milliliters in US fluid ounces?
30 milliliters is 1.01 US fluid ounces. 1 milliliter = 0.033814 US fluid ounces, so the working is 30 × 0.033814 = 1.01.
How accurate is 1.01 fl oz?
Rounding to 1.01 fl oz and converting straight back gives 29.8693 mL, a drift of 0.1307 mL from the 30 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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