How Many Milliliters Are in a Fluid Ounce? (ml to fl oz Explained)
Quick answer: one milliliter equals 0.033814 US fluid ounces (and one us fluid ounce is 29.5735 milliliters). To convert any value, multiply your milliliters by 0.03381402.
Few conversions come up as often as milliliters to US fluid ounces. Recipes, travel, product listings and school assignments all mix the two, and getting the factor slightly wrong compounds quickly when the numbers get big. This guide gives you the exact factor, the mental shortcut, worked examples, and reference tables you can bookmark.
Understanding the units
Milliliter (ml)
The milliliter — one cubic centimeter — is the metric unit of medicine doses, beverage cans and recipe liquids.
US fluid ounce (fl oz)
The US fluid ounce is about 29.57 ml — slightly larger than the UK fluid ounce. Eight fluid ounces make a US cup.
The exact conversion formula
US fluid ounces = milliliters × 0.0338140227How to convert milliliters to US fluid ounces, step by step
- Take your value in milliliters.
- Multiply by 0.03381402 (the number of US fluid ounces in one milliliter).
- Round sensibly for your context — engineering needs more decimals than a shopping list.
Worked examples:
- 5 milliliters × 0.033814 = 0.16907 US fluid ounces
- 12 milliliters × 0.033814 = 0.405768 US fluid ounces
- 50 milliliters × 0.033814 = 1.6907 US fluid ounces
- 365 milliliters × 0.033814 = 12.3421 US fluid ounces
Real-world reference points
Kitchen anchors make volume real: a teaspoon is 5 ml, a tablespoon 15 ml, a US cup 237 ml, a soda can 355 ml, a wine bottle 750 ml, and a US gallon of milk 3.785 liters. Note that dry and liquid measuring cups hold the same volume — they differ only in how you level them off.
Quick lookup: 1 to 100 milliliters in US fluid ounces
Scan this list for the exact value you need — each line is computed with the precise conversion factor, not an approximation.
- 1 milliliter = 0.033814 US fluid ounces
- 2 milliliters = 0.067628 US fluid ounces
- 3 milliliters = 0.101442 US fluid ounces
- 4 milliliters = 0.135256 US fluid ounces
- 5 milliliters = 0.16907 US fluid ounces
- 6 milliliters = 0.202884 US fluid ounces
- 7 milliliters = 0.236698 US fluid ounces
- 8 milliliters = 0.270512 US fluid ounces
- 9 milliliters = 0.304326 US fluid ounces
- 10 milliliters = 0.33814 US fluid ounces
- 11 milliliters = 0.371954 US fluid ounces
- 12 milliliters = 0.405768 US fluid ounces
- 13 milliliters = 0.439582 US fluid ounces
- 14 milliliters = 0.473396 US fluid ounces
- 15 milliliters = 0.50721 US fluid ounces
- 16 milliliters = 0.541024 US fluid ounces
- 17 milliliters = 0.574838 US fluid ounces
- 18 milliliters = 0.608652 US fluid ounces
- 19 milliliters = 0.642466 US fluid ounces
- 20 milliliters = 0.67628 US fluid ounces
- 21 milliliters = 0.710094 US fluid ounces
- 22 milliliters = 0.743908 US fluid ounces
- 23 milliliters = 0.777723 US fluid ounces
- 24 milliliters = 0.811537 US fluid ounces
- 25 milliliters = 0.845351 US fluid ounces
- 26 milliliters = 0.879165 US fluid ounces
- 27 milliliters = 0.912979 US fluid ounces
- 28 milliliters = 0.946793 US fluid ounces
- 29 milliliters = 0.980607 US fluid ounces
- 30 milliliters = 1.0144 US fluid ounces
- 31 milliliters = 1.0482 US fluid ounces
- 32 milliliters = 1.082 US fluid ounces
- 33 milliliters = 1.1159 US fluid ounces
- 34 milliliters = 1.1497 US fluid ounces
- 35 milliliters = 1.1835 US fluid ounces
- 36 milliliters = 1.2173 US fluid ounces
- 37 milliliters = 1.2511 US fluid ounces
- 38 milliliters = 1.2849 US fluid ounces
- 39 milliliters = 1.3187 US fluid ounces
- 40 milliliters = 1.3526 US fluid ounces
- 41 milliliters = 1.3864 US fluid ounces
- 42 milliliters = 1.4202 US fluid ounces
- 43 milliliters = 1.454 US fluid ounces
- 44 milliliters = 1.4878 US fluid ounces
- 45 milliliters = 1.5216 US fluid ounces
- 46 milliliters = 1.5554 US fluid ounces
- 47 milliliters = 1.5893 US fluid ounces
- 48 milliliters = 1.6231 US fluid ounces
- 49 milliliters = 1.6569 US fluid ounces
- 50 milliliters = 1.6907 US fluid ounces
- 51 milliliters = 1.7245 US fluid ounces
- 52 milliliters = 1.7583 US fluid ounces
- 53 milliliters = 1.7921 US fluid ounces
- 54 milliliters = 1.826 US fluid ounces
- 55 milliliters = 1.8598 US fluid ounces
- 56 milliliters = 1.8936 US fluid ounces
- 57 milliliters = 1.9274 US fluid ounces
- 58 milliliters = 1.9612 US fluid ounces
- 59 milliliters = 1.995 US fluid ounces
- 60 milliliters = 2.0288 US fluid ounces
- 61 milliliters = 2.0627 US fluid ounces
- 62 milliliters = 2.0965 US fluid ounces
- 63 milliliters = 2.1303 US fluid ounces
- 64 milliliters = 2.1641 US fluid ounces
- 65 milliliters = 2.1979 US fluid ounces
- 66 milliliters = 2.2317 US fluid ounces
- 67 milliliters = 2.2655 US fluid ounces
- 68 milliliters = 2.2994 US fluid ounces
- 69 milliliters = 2.3332 US fluid ounces
- 70 milliliters = 2.367 US fluid ounces
- 71 milliliters = 2.4008 US fluid ounces
- 72 milliliters = 2.4346 US fluid ounces
- 73 milliliters = 2.4684 US fluid ounces
- 74 milliliters = 2.5022 US fluid ounces
- 75 milliliters = 2.5361 US fluid ounces
- 76 milliliters = 2.5699 US fluid ounces
- 77 milliliters = 2.6037 US fluid ounces
- 78 milliliters = 2.6375 US fluid ounces
- 79 milliliters = 2.6713 US fluid ounces
- 80 milliliters = 2.7051 US fluid ounces
- 81 milliliters = 2.7389 US fluid ounces
- 82 milliliters = 2.7727 US fluid ounces
- 83 milliliters = 2.8066 US fluid ounces
- 84 milliliters = 2.8404 US fluid ounces
- 85 milliliters = 2.8742 US fluid ounces
- 86 milliliters = 2.908 US fluid ounces
- 87 milliliters = 2.9418 US fluid ounces
- 88 milliliters = 2.9756 US fluid ounces
- 89 milliliters = 3.0094 US fluid ounces
- 90 milliliters = 3.0433 US fluid ounces
- 91 milliliters = 3.0771 US fluid ounces
- 92 milliliters = 3.1109 US fluid ounces
- 93 milliliters = 3.1447 US fluid ounces
- 94 milliliters = 3.1785 US fluid ounces
- 95 milliliters = 3.2123 US fluid ounces
- 96 milliliters = 3.2461 US fluid ounces
- 97 milliliters = 3.28 US fluid ounces
- 98 milliliters = 3.3138 US fluid ounces
- 99 milliliters = 3.3476 US fluid ounces
- 100 milliliters = 3.3814 US fluid ounces
Milliliter to US fluid ounce conversion table
The extended table below covers fractional and large values for quick reference.
| Milliliter (ml) | US fluid ounce (fl oz) |
|---|---|
| 0.01 ml | 0.00033814 fl oz |
| 0.05 ml | 0.001691 fl oz |
| 0.1 ml | 0.003381 fl oz |
| 0.2 ml | 0.006763 fl oz |
| 0.25 ml | 0.008454 fl oz |
| 0.3 ml | 0.010144 fl oz |
| 0.4 ml | 0.013526 fl oz |
| 0.5 ml | 0.016907 fl oz |
| 0.75 ml | 0.025361 fl oz |
| 1 ml | 0.033814 fl oz |
| 1.25 ml | 0.042268 fl oz |
| 1.5 ml | 0.050721 fl oz |
| 1.75 ml | 0.059175 fl oz |
| 2 ml | 0.067628 fl oz |
| 2.5 ml | 0.084535 fl oz |
| 3 ml | 0.101442 fl oz |
| 3.5 ml | 0.118349 fl oz |
| 4 ml | 0.135256 fl oz |
| 4.5 ml | 0.152163 fl oz |
| 5 ml | 0.16907 fl oz |
| 6 ml | 0.202884 fl oz |
| 7 ml | 0.236698 fl oz |
| 8 ml | 0.270512 fl oz |
| 9 ml | 0.304326 fl oz |
| 10 ml | 0.33814 fl oz |
| 11 ml | 0.371954 fl oz |
| 12 ml | 0.405768 fl oz |
| 13 ml | 0.439582 fl oz |
| 14 ml | 0.473396 fl oz |
| 15 ml | 0.50721 fl oz |
| 16 ml | 0.541024 fl oz |
| 17 ml | 0.574838 fl oz |
| 18 ml | 0.608652 fl oz |
| 19 ml | 0.642466 fl oz |
| 20 ml | 0.67628 fl oz |
| 22 ml | 0.743908 fl oz |
| 24 ml | 0.811537 fl oz |
| 25 ml | 0.845351 fl oz |
| 26 ml | 0.879165 fl oz |
| 28 ml | 0.946793 fl oz |
| 30 ml | 1.0144 fl oz |
| 32 ml | 1.082 fl oz |
| 35 ml | 1.1835 fl oz |
| 40 ml | 1.3526 fl oz |
| 45 ml | 1.5216 fl oz |
| 50 ml | 1.6907 fl oz |
| 55 ml | 1.8598 fl oz |
| 60 ml | 2.0288 fl oz |
| 65 ml | 2.1979 fl oz |
| 70 ml | 2.367 fl oz |
| 75 ml | 2.5361 fl oz |
| 80 ml | 2.7051 fl oz |
| 85 ml | 2.8742 fl oz |
| 90 ml | 3.0433 fl oz |
| 95 ml | 3.2123 fl oz |
| 100 ml | 3.3814 fl oz |
| 110 ml | 3.7195 fl oz |
| 120 ml | 4.0577 fl oz |
| 125 ml | 4.2268 fl oz |
| 150 ml | 5.0721 fl oz |
| 175 ml | 5.9175 fl oz |
| 200 ml | 6.7628 fl oz |
| 250 ml | 8.4535 fl oz |
| 300 ml | 10.1442 fl oz |
| 350 ml | 11.8349 fl oz |
| 400 ml | 13.5256 fl oz |
| 450 ml | 15.2163 fl oz |
| 500 ml | 16.907 fl oz |
| 600 ml | 20.2884 fl oz |
| 700 ml | 23.6698 fl oz |
| 750 ml | 25.3605 fl oz |
| 800 ml | 27.0512 fl oz |
| 900 ml | 30.4326 fl oz |
| 1,000 ml | 33.814 fl oz |
| 1,500 ml | 50.721 fl oz |
| 2,000 ml | 67.628 fl oz |
| 2,500 ml | 84.5351 fl oz |
| 5,000 ml | 169.0701 fl oz |
| 10,000 ml | 338.1402 fl oz |
Reverse table: US fluid ounces to milliliters
| US fluid ounce (fl oz) | Milliliter (ml) |
|---|---|
| 0.1 fl oz | 2.9574 ml |
| 0.25 fl oz | 7.3934 ml |
| 0.5 fl oz | 14.7868 ml |
| 1 fl oz | 29.5735 ml |
| 2 fl oz | 59.1471 ml |
| 3 fl oz | 88.7206 ml |
| 4 fl oz | 118.2941 ml |
| 5 fl oz | 147.8676 ml |
| 6 fl oz | 177.4412 ml |
| 7 fl oz | 207.0147 ml |
| 8 fl oz | 236.5882 ml |
| 9 fl oz | 266.1618 ml |
| 10 fl oz | 295.7353 ml |
| 12 fl oz | 354.8824 ml |
| 15 fl oz | 443.6029 ml |
| 20 fl oz | 591.4706 ml |
| 25 fl oz | 739.3382 ml |
| 30 fl oz | 887.2059 ml |
| 40 fl oz | 1,182.94 ml |
| 50 fl oz | 1,478.68 ml |
| 60 fl oz | 1,774.41 ml |
| 75 fl oz | 2,218.01 ml |
| 100 fl oz | 2,957.35 ml |
| 150 fl oz | 4,436.03 ml |
| 200 fl oz | 5,914.71 ml |
| 250 fl oz | 7,393.38 ml |
| 500 fl oz | 14,786.76 ml |
| 750 fl oz | 22,180.15 ml |
| 1,000 fl oz | 29,573.53 ml |
| 5,000 fl oz | 147,867.65 ml |
Reverse lookup: US fluid ounces in milliliters
- 1 us fluid ounce = 29.5735 milliliters
- 2 US fluid ounces = 59.1471 milliliters
- 3 US fluid ounces = 88.7206 milliliters
- 4 US fluid ounces = 118.2941 milliliters
- 5 US fluid ounces = 147.8676 milliliters
- 6 US fluid ounces = 177.4412 milliliters
- 7 US fluid ounces = 207.0147 milliliters
- 8 US fluid ounces = 236.5882 milliliters
- 9 US fluid ounces = 266.1618 milliliters
- 10 US fluid ounces = 295.7353 milliliters
- 11 US fluid ounces = 325.3088 milliliters
- 12 US fluid ounces = 354.8824 milliliters
- 13 US fluid ounces = 384.4559 milliliters
- 14 US fluid ounces = 414.0294 milliliters
- 15 US fluid ounces = 443.6029 milliliters
- 16 US fluid ounces = 473.1765 milliliters
- 17 US fluid ounces = 502.75 milliliters
- 18 US fluid ounces = 532.3235 milliliters
- 19 US fluid ounces = 561.8971 milliliters
- 20 US fluid ounces = 591.4706 milliliters
- 21 US fluid ounces = 621.0441 milliliters
- 22 US fluid ounces = 650.6177 milliliters
- 23 US fluid ounces = 680.1912 milliliters
- 24 US fluid ounces = 709.7647 milliliters
- 25 US fluid ounces = 739.3382 milliliters
- 26 US fluid ounces = 768.9118 milliliters
- 27 US fluid ounces = 798.4853 milliliters
- 28 US fluid ounces = 828.0588 milliliters
- 29 US fluid ounces = 857.6324 milliliters
- 30 US fluid ounces = 887.2059 milliliters
Common mistakes to avoid
Volume trips people up more than any other category: US and UK fluid ounces differ (29.57 vs 28.41 ml), US and UK gallons differ by 20%, a US pint is 473 ml while a British pub pint is 568 ml, and an Australian tablespoon is 20 ml, not 15. Always confirm which country a recipe comes from before converting.
Precision and rounding
The tables above round to a few decimal places for readability. When you need full precision — engineering drawings, scientific work, legal documents — use the exact factor 0.0338140227 and round only at the very end of your calculation. Rounding intermediate steps is the most common source of conversion drift, especially when several conversions are chained together.
Convert it instantly
Skip the arithmetic entirely: our free Milliliter to US fluid ounce converter computes any value as you type, and the US fluid ounce to Milliliter converter handles the reverse direction. For every other volume unit, see the complete volume conversion guide.
Frequently asked questions
How many US fluid ounces are in one milliliter?
Exactly 0.033814 US fluid ounces. This factor comes from the internationally agreed definitions of both units.
How do I convert US fluid ounces back to milliliters?
Divide by 0.03381402 — or equivalently multiply by 29.57352956, since one us fluid ounce equals 29.5735 milliliters.
Can I do this conversion in my head?
For estimates, round the factor: one milliliter ≈ 0.03 US fluid ounces. That's usually close enough for shopping or travel; reach for the exact factor when precision matters.
What is 2.5 milliliters in US fluid ounces?
2.5 milliliters equal 0.084535 US fluid ounces. Multiply 2.5 by the factor 0.033814.
What is 500 milliliters in US fluid ounces?
500 milliliters equal 16.907 US fluid ounces (500 × 0.033814).
Where does the conversion factor come from?
Both units are legally defined against the same SI base unit (the liter), so the factor 0.0338140227 is a mathematical consequence of those definitions — it is exact, permanent, and the same everywhere in the world.
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