Milliliters to Fluid Ounces (mL to oz)
To convert milliliters to US fluid ounces, divide by 29.5735295625. A 250 mL glass holds 8.45 fl oz, and a 500 mL bottle holds 16.9 fl oz. The UK imperial fluid ounce is smaller (28.41 mL), so the table shows both.
Convert mL to oz
Result
mL to oz
250 mL = 8.45351 fl oz
1 mL = 0.033814 fl oz · 1 fl oz = 29.5735 mL
Show the mathHow it was calculated
fl oz = mL ÷ 29.5735295625
Uses exact legal definitions; results are rounded to 6 significant figures for display. Ounces, cups and gallons are US customary units unless noted.
How to convert mL to oz
fl oz = mL ÷ 29.5735295625
One US fluid ounce is exactly 29.5735295625 milliliters, so divide by 29.5735295625. If you'd rather multiply, use 0.033814 (rounded).
Worked example: converting 250 mL:
- fl oz = mL ÷ 29.5735295625
- 250 mL ÷ 29.5735295625 = 8.45351 fl oz
ML to oz conversion table
Common values, each computed with the exact formula and rounded to 6 significant figures.
| Milliliters (mL) | US fluid ounces (fl oz) | Imperial fl oz (UK) |
|---|---|---|
| 5 mL | 0.16907 fl oz | 0.17598 |
| 10 mL | 0.33814 fl oz | 0.35195 |
| 15 mL | 0.50721 fl oz | 0.52793 |
| 20 mL | 0.67628 fl oz | 0.7039 |
| 25 mL | 0.845351 fl oz | 0.87988 |
| 30 mL | 1.01442 fl oz | 1.0559 |
| 50 mL | 1.6907 fl oz | 1.7598 |
| 60 mL | 2.02884 fl oz | 2.1117 |
| 75 mL | 2.53605 fl oz | 2.6396 |
| 90 mL | 3.04326 fl oz | 3.1676 |
| 100 mL | 3.3814 fl oz | 3.5195 |
| 120 mL | 4.05768 fl oz | 4.2234 |
| 125 mL | 4.22675 fl oz | 4.3994 |
| 150 mL | 5.0721 fl oz | 5.2793 |
| 180 mL | 6.08652 fl oz | 6.3351 |
| 200 mL | 6.7628 fl oz | 7.039 |
| 240 mL | 8.11537 fl oz | 8.4468 |
| 250 mL | 8.45351 fl oz | 8.7988 |
| 300 mL | 10.1442 fl oz | 10.559 |
| 330 mL | 11.1586 fl oz | 11.614 |
| 350 mL | 11.8349 fl oz | 12.318 |
| 355 mL | 12.004 fl oz | 12.494 |
| 375 mL | 12.6803 fl oz | 13.198 |
| 400 mL | 13.5256 fl oz | 14.078 |
| 473 mL | 15.994 fl oz | 16.647 |
| 500 mL | 16.907 fl oz | 17.598 |
| 591 mL | 19.9841 fl oz | 20.8 |
| 600 mL | 20.2884 fl oz | 21.117 |
| 750 mL | 25.3605 fl oz | 26.396 |
| 1,000 mL | 33.814 fl oz | 35.195 |
Quick reference: everyday milliliters in US fluid ounces
Metric tablespoon
15 mL = 0.50721 fl oz
Carry-on liquid container limit
100 mL = 3.3814 fl oz
European soda can
330 mL = 11.1586 fl oz
US 12 fl oz can (labelled 355 mL)
355 mL = 12.004 fl oz
Standard water bottle
500 mL = 16.907 fl oz
Standard wine bottle
750 mL = 25.3605 fl oz
US vs. imperial fluid ounces
There are two fluid ounces in common use. The US customary fluid ounce is 1/128 of a US gallon, exactly 29.5735295625 mL. The imperial fluid ounce used in the UK is 1/160 of an imperial gallon, exactly 28.4130625 mL. So 500 mL is 16.91 US fl oz but 17.60 imperial fl oz.
The gap is about 4%. That won't ruin a soup, but it does matter for baby formula, medicine cups and cocktail ratios. If a recipe or label comes from the UK, Ireland or an older Australian or Canadian source, check which ounce it means before converting.
Nutrition labels, cans and the 100 mL travel rule
The net-contents line on US packaging converts exactly, so a 12 fl oz can is labelled 355 mL (354.9 mL rounded). The Nutrition Facts serving size is different: FDA labeling rules round 1 fl oz to 30 mL there, so an 8 fl oz serving is shown as 240 mL. European cans are 330 mL, a little smaller at 11.16 fl oz, and a standard 750 mL wine bottle holds 25.4 fl oz.
Carry-on liquid limits are set at 100 mL per container. The US TSA publishes that as 3.4 oz, the result of converting 100 mL (3.38 fl oz) and rounding up. A 3.4 oz bottle bought in the US therefore meets the 100 mL rule abroad.
Frequently asked questions
Is a fluid ounce the same as an ounce of weight?
No. A fluid ounce measures volume and an ounce (avoirdupois) measures weight. One US fluid ounce of water weighs about 1.04 oz, so the two are close for water and similar liquids. For oil, honey or flour they differ a lot, so a recipe that says '8 oz' of a dry ingredient means weight, not a measuring cup.
How many mL is a shot?
There's no single legal shot size. In the US a 'standard' 1.5 fl oz jigger is common, which is 44.4 mL. Bars elsewhere pour 20 mL, 25 mL, 35 mL or 40 mL measures set by local rules or custom. Convert the specific pour size your recipe or bar uses rather than assuming one figure.
How many fluid ounces are in a liter?
A liter is 33.814 US fluid ounces, or 35.195 imperial fluid ounces. A 1-liter bottle is a little more than a US quart (32 fl oz), which is why liter bottles hold slightly more than quart containers. For larger volumes, the liters to gallons converter is usually easier.