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Units of measurement have made life easier for everyone, allowing us to accurately measure food ingredients, liquids, and much more. However, it’s more important to understand how to convert these units of measurement, especially how to convert oz to ml.
To convert oz to ml, multiply the ounce by 28.4131 ml for British ounces and 29.5735 ml for US ounces. You can convert oz to ml much easier when you use the oz to ml converter. To use this converter, enter the value of oz you want to convert, and click ‘Convert’ to calculate its equivalent in ml.
It’s important to understand how to convert oz to ml when you’re a chef, a doctor, or anyone working with tiny solid and liquid sizes.
As such, this article will introduce you to the concept of ounces and milliliters, and show you how to convert oz to ml. You’ll learn how to do this with a formula and using our converter, as well as how to convert ml to oz.
A fluid ounce is a unit of measurement for liquids, which is usually used in the US customary units system and the Imperial system of units. It’s perfect for situations where the liquid you want to measure is too small to use liters and too big to use milliliters. The fluid ounce is calibrated as fl oz or fl. oz.
While the fluid ounce is used in both the US customary units and the British Imperial system of units, the liquid sizes are different. The US fluid ounce is 1/128 of a US liquid gallon. The British fluid ounce is 8 fluid drams, or 1/160 of an imperial gallon, or 1/20 of an imperial pint.
To put it mathematically:
1 fl oz = 1/160 gal
1 fl oz = 1/128 gal
So the difference between both liquid sizes is roughly 4%, which isn’t much of a difference to the average person. However, for cases that require absolute accuracy, it’s something to take note of.
Bear in mind that the fluid ounce is not the same as the ounce. The ounce is a mass measurement unit, while the fluid ounce is a liquid measurement unit.
The ml (or milliliter) is 0.001 liter or one-thousandth of a liter, which is roughly the size of a drop of water. It’s a unit of measurement for volume, just like the liter. This unit of measurement is usually used by doctors for medicine dosages, chefs in cooking recipes, and even in everyday tasks.
While the milliliter is used to measure volume, it’s not an official SI unit for volume; that honour belongs to the cubic meter. Nonetheless, a milliliter is equivalent to one cubic centimeter.
There’s no clear-cut answer here, as the ounce is a unit of measurement that depends on the density of a material. So, there are different milliliters in dry and wet materials, and this is something to take note of when you convert oz to ml.
Nonetheless, below is a table for when you convert oz to ml for different kitchen ingredients. This will give you an idea of how many milliliters are in an ounce for different substances.
| Wet Material | Dry Materials | ||||
| Ounce | Water | Cooking Oil | Milk | Granulated Sugar | Flour |
| 1 oz | 28.5 ml | 32.22 ml | 27.52 ml | 33.54 ml | 53.59 ml |
| 2 oz | 56.7 ml | 64.43 ml | 55.05 ml | 67.07 ml | 107.18 ml |
| 3 oz | 85.05 ml | 96.65 ml | 82.57 ml | 100.61 ml | 160.77 ml |
| 4 oz | 113.4 ml | 128.86 ml | 110.1 ml | 134.14 ml | 214.36 ml |
| 5 oz | 141.75 ml | 161.08 ml | 137.62 ml | 167.68 ml | 267.95 ml |
| 6 oz | 170.1 ml | 193.29 ml | 165.14 ml | 201.21 ml | 321.54 ml |
| 7 oz | 198.45 ml | 225.51 ml | 192.67 ml | 234.75 ml | 375.14 ml |
| 8 oz | 226.6 ml | 257.72 ml | 220.19 ml | 268.29 ml | 428.73 ml |
| 9 oz | 255.15 ml | 289.94 ml | 247.71 ml | 301.82 ml | 482.32 ml |
| 10 oz | 283.5 ml | 322.15 ml | 275.24 ml | 335.36 ml | 535.91 ml |
| 11 oz | 311.84 ml | 354.37 ml | 302.76 ml | 368.89 ml | 589.5 ml |
| 12 oz | 340.19 ml | 386.58 ml | 330.29 ml | 402.43 ml | 643.09 ml |
| 13 oz | 368.54 ml | 418.8 ml | 357.81 ml | 435.97 ml | 696.68 ml |
| 14 oz | 396.89 ml | 451.02 ml | 385.33 ml | 469.5 ml | 750.27 ml |
| 15 oz | 425.24 ml | 483.23 ml | 412.86 ml | 503.04 ml | 803.86 ml |
| 16 oz | 453.59 ml | 515.45 ml | 440.38 ml | 536.57 ml | 857.45 ml |
| 17 oz | 481.94 ml | 547.66 ml | 467.9 ml | 570.11 ml | 911.04 ml |
| 18 oz | 510.29 ml | 579.88 ml | 495.43 ml | 603.64 ml | 964.63 ml |
| 19 oz | 538.64 ml | 612.09 ml | 522.95 ml | 637.18 ml | 1,018 ml |
| 20 oz | 566.99 ml | 644.31 ml | 550.48 ml | 670.72 ml | 1,072 ml |
| 21 oz | 595.34 ml | 676.52 ml | 578 ml | 704.25 ml | 1,125 ml |
| 22 oz | 623.69 ml | 708.74 ml | 605.52 ml | 737.79 ml | 1,179 ml |
| 23 oz | 652.04 ml | 740.95 ml | 633.05 ml | 771.32 ml | 1,233 ml |
| 24 oz | 680.39 ml | 773.17 ml | 660.57 ml | 804.86 ml | 1,286 ml |
| 25 oz | 708.74 ml | 805.38 ml | 688.1 ml | 838.4 ml | 1,340 ml |
| 26 oz | 737.09 ml | 837.6 ml | 715.62 ml | 871.93 ml | 1,393 ml |
| 27 oz | 765.44 ml | 869.81 ml | 743.14 ml | 905.47 ml | 1,447 ml |
| 28 oz | 793.79 ml | 902.03 ml | 770.67 ml | 939 ml | 1,501 ml |
| 29 oz | 822.14 ml | 934.25 ml | 798.19 ml | 972.54 ml | 1,554 ml |
| 30 oz | 850.49 ml | 966.46 ml | 825.71 ml | 1,006 ml | 1,608 ml |
| 31 oz | 878.84 ml | 998.68 ml | 853.24 ml | 1,040 ml | 1,661 ml |
| 32 oz | 907.18 ml | 1,031 ml | 880.76 ml | 1,073 ml | 1,715 ml |
| 33 oz | 935.53 ml | 1,063 ml | 908.29 ml | 1,107 ml | 1,768 ml |
| 34 oz | 963.88 ml | 1,095 ml | 935.81 ml | 1,140 ml | 1,822 ml |
| 35 oz | 992.23 ml | 1,128 ml | 963.33 ml | 1,174 ml | 1,876 ml |
| 36 oz | 1,021 ml | 1,160 ml | 990.86 ml | 1,207 ml | 1,929 ml |
| 37 oz | 1,049 ml | 1,192 ml | 1,018 ml | 1,241 ml | 1,983 ml |
| 38 oz | 1,077 ml | 1,224 ml | 1,046 ml | 1,274 ml | 2,036 ml |
| 39 oz | 1,106 ml | 1,256 ml | 1,073 ml | 1,308 ml | 2,090 ml |
| 40 oz | 1,134 ml | 1,289 ml | 1,101 ml | 1,341 ml | 2,144 ml |
The ounce is a unit of mass equal to 28.349523 grams, or 0.0625 pounds. It’s a British Imperial and US Customary unit of mass, and it can be abbreviated as oz.
We’ve already established that an ounce is a unit of measurement for mass, while the milliliter is for volume. However, the ounce is also used to measure liquid volume in countries like the United States.
That’s why you’ll notice that some liquid-based and packaged food products in the US and Britain are measured by the ounce.
Apart from being a unit of mass, the ounce can also be referred to as a unit of weight. This is because weight and mass are equivalent, as long as the calculation involving them is performed on Earth.
So, if an object weighs one ounce with a mass of one ounce on Earth, its mass on the Moon remains the same. However, its weight on the moon changes, and becomes ⅙ of an ounce.
One more thing of note is that the common ounce and the troy ounce are different. The troy ounce is 0.8333 (1/12) of a troy pound, while the common ounce is 0.0635 (1/16) of a regular pound.

The first thing to keep in mind when you want to convert oz to ml is that there are two types of ounces.
When you want to convert oz to ml for the British ounce, multiply the number of ounces you want to convert by 28.4131. For example, if you want to convert 15 ounces to milliliters, you multiply 15 by 28.4131.
15 x 28.4131 = 426.1965 ml
If you want to convert oz to ml for the US ounce, multiply the number of ounces you’ll be converting by 29.5735. So, if you want to convert 15 ounces to milliliters, you multiply 15 by 29.5735.
15 x 29.5735 = 443.6025 ml
There are many reasons why people convert oz to ml, and some of them are listed below:
To convert ml to oz for any liquid, divide the ml you want to convert by 29.5735 to get its value in US ounces. If you want to get British ounces at the end of your ml to oz convert, divide the milliliters by 28.4131.
So, if you want to convert 50 milliliters to British ounces, divide your milliliters by 28.4131. If you want to get US ounces at the end of that conversion, divide the milliliters by 29.5735.
50/28.4131 = 1.7598 British ounces
50/29.5735 = 1.6907 US ounces
To put it simply, to convert ml to oz, you do the opposite of what you did when you convert oz to ml.
To convert oz to ml might look simple at first glance, but that’s only when you’re working with small numbers. If the numbers get bigger, it won’t be that easy, especially for Canadians who are bad at math.
So, you can make things easier in such cases when you convert oz to ml using a converter. The oz to ml converter is software that takes in your ounces and gives you the milliliter value for them. It’s simple, easy to use, and makes it easier to convert oz to ml when huge numbers are involved.
You can follow this straightforward guide to convert oz to ml using our oz to ml converter.
Canadians who don’t want to convert ml to oz using the formula can use an ml to oz converter or the conversion table below.
The conversion table below is an easy way to get accurate measurements of milliliter to fluid ounce conversions. It shows the amount of fluid ounce that certain milliliters of liquid convert to.
| Milliliter | British Fluid Ounce | US Fluid Ounce |
| 1 ml | 0.0352 fl oz | 0.0338 fl oz |
| 2 ml | 0.0704 fl oz | 0.0676 fl oz |
| 3 ml | 0.1056 fl oz | 0.1014 fl oz |
| 4 ml | 0.1407 fl oz | 0.1353 fl oz |
| 5 ml | 0.1760 fl oz | 0.1691 fl oz |
| 6 ml | 0.2112 fl oz | 0.2029 fl oz |
| 7 ml | 0.2464 fl oz | 0.2367 fl oz |
| 8 ml | 0.2816 fl oz | 0.2705 fl oz |
| 9 ml | 0.3168 fl oz | 0.3043 fl oz |
| 10 ml | 0.3520 fl oz | 0.3381 fl oz |
| 11 ml | 0.3871 fl oz | 0.3720 fl oz |
| 12 ml | 0.4223 fl oz | 0.4058 fl oz |
| 13 ml | 0.4575 fl oz | 0.4396 fl oz |
| 14 ml | 0.4927 fl oz | 0.4734 fl oz |
| 15 ml | 0.5279 fl oz | 0.5072 fl oz |
| 16 ml | 0.5631 fl oz | 0.5410 fl oz |
| 17 ml | 0.5983 fl oz | 0.5748 fl oz |
| 18 ml | 0.6335 fl oz | 0.6087 fl oz |
| 19 ml | 0.6687 fl oz | 0.6425 fl oz |
| 20 ml | 0.7039 fl oz | 0.6763 fl oz |
| 21 ml | 0.7391 fl oz | 0.7101 fl oz |
| 22 ml | 0.7743 fl oz | 0.7439 fl oz |
| 23 ml | 0.8095 fl oz | 0.7777 fl oz |
| 24 ml | 0.8447 fl oz | 0.8115 fl oz |
| 25 ml | 0.8788 fl oz | 0.8454 fl oz |
| 26 ml | 0.9151 fl oz | 0.8792 fl oz |
| 27 ml | 0.9503 fl oz | 0.9130 fl oz |
| 28 ml | 0.9855 fl oz | 0.9468 fl oz |
| 29 ml | 1.0207 fl oz | 0.9806 fl oz |
| 30 ml | 1.0559 fl oz | 1.0144 fl oz |
The ounce and millilitre are two important units of measurement when calculating the mass of tiny liquids and solids. These units of measurement are used to measure food proportions, packaged food sizes, liquid sizes, and more.
So, Canadians who work with solids and liquids of such sizes need to understand how to convert oz to ml or ml to oz. The formula for how to convert oz to ml can be difficult to apply for anyone who doesn’t like math.
However, our oz to ml converter automates this process, making it faster and reducing the chances of mistakes.
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8 US fluid ounces are 236.588 milliliters. You get this value when you convert oz to ml by multiplying 8 by 29.5735.
The formula to convert oz to ml is ‘ounce x 28.4131’ for British ounces or ‘ounce x 29.5735’ for US ounces, respectively.
There are 0.03519 British ounces in 1 ml or 0.03381 US ounces in 1 ml.
The ounce and ml are units of measurement that are used in cooking and baking to accurately measure ingredients. These units of measurement are also used by medical practitioners to accurately dose patients.
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