Seldons
oz to ml
1 US fluid ounce = 29.5735 milliliters.
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How do you convert US fluid ounces to milliliters?
Use this formula. It is exact — these units are defined by international agreement, not measured.
mL = fl oz × 29.5735296
Example: 10 fl oz × 29.5735296 = 295.735 mL.
oz to ml conversion table
Common values, rounded to six significant figures.
| fl oz | mL |
|---|---|
| 1 fl oz | 29.5735 mL |
| 2 fl oz | 59.1471 mL |
| 4 fl oz | 118.294 mL |
| 6 fl oz | 177.441 mL |
| 8 fl oz | 236.588 mL |
| 10 fl oz | 295.735 mL |
| 12 fl oz | 354.882 mL |
| 16 fl oz | 473.176 mL |
| 20 fl oz | 591.471 mL |
| 24 fl oz | 709.765 mL |
| 32 fl oz | 946.353 mL |
| 40 fl oz | 1,182.94 mL |
| 64 fl oz | 1,892.71 mL |
| 100 fl oz | 2,957.35 mL |
| 128 fl oz | 3,785.41 mL |
US labels give fluid ounces and the rest of the world reads milliliters, which matters most for anything dosed or duty-limited — a 3.4 fl oz travel bottle is 100 mL because that is the airport rule it was designed around. One US fluid ounce is 29.5735295625 mL exactly.
Values worth remembering
These come up often enough that knowing them saves a lookup.
- 8 fl oz = 236.588 mLa US cup
- 12 fl oz = 354.882 mLa drinks can
Questions people ask
How many milliliters is 1 US fluid ounce?
1 US fluid ounce is 29.5735 milliliters.
How many US fluid ounces is 1 milliliter?
1 milliliter is 0.033814 US fluid ounces.
How do you convert US fluid ounces to milliliters in your head?
Use × 29.57. That lands within a percent or so of the exact figure, which is close enough for packing, shipping estimates and shopping — use the calculator when the number has to be right.
Is the US fluid ounce to milliliter conversion exact?
Yes. The relationship is exact by international agreement, so 29.5735296 is a definition rather than a measurement. Rounding in the answer comes from display, not from the conversion.