Ounces to Milliliters Converter

Easily convert ounces to milliliters using our simple and efficient converter. Whether you’re cooking, baking, or measuring fluids for any purpose, our tool provides quick and accurate conversions to make your task easier.

Ounces to Milliliters Converter

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What is a Fluid Ounce?

A fluid ounce is a unit of volume commonly used in the imperial system to measure liquids. It is particularly useful for indicating everyday quantities of liquids when milliliters and liters are either too small or too large.

Fluid ounces are abbreviated as fl oz or fl. oz. There are two main types of fluid ounces:

  • The British Imperial fluid ounce
  • The United States Customary fluid ounce

It’s important to know which one you are using, as they have slightly different values.

Remember, a fluid ounce measures volume, not to be confused with an ounce, which measures mass!


  • Imperial Fluid Ounce: Defined as 1/160th of an imperial gallon.
  • US Fluid Ounce: Defined as 1/128th of a US liquid gallon.

Conversion from Ounces to Milliliters

To convert fluid ounces to milliliters, you need to know which type of fluid ounce you are dealing with:

  • 1 Imperial Fluid Ounce = 28.4 ml
  • 1 US Fluid Ounce = 29.6 ml

Although the difference is small (a bit more than 4%), it’s crucial to use the correct conversion for accurate measurements, especially in precise applications.

How to Use the Ounces to Milliliters Converter

  1. Select the Type of Ounce: Choose either Imperial or US fluid ounces.
  2. Enter the Value: Input the number of fluid ounces you wish to convert.
  3. Get Instant Results: The equivalent volume in milliliters will be displayed immediately.
Ounces to Milliliters Conversion Table
Conversion Formula:
To understand how the conversion works, here’s the basic formula used:
Milliliters = Ounces × 29.5735
This means one ounce is equal to 29.5735 milliliters.
Ounces (oz)
Milliliters (ml)
0 oz
0 ml
1 oz
29.5735 ml
2 oz
59.147 ml
3 oz
88.7205 ml
4 oz
118.294 ml
5 oz
147.8675 ml
6 oz
177.441 ml
7 oz
207.0145 ml
8 oz
236.588 ml
9 oz
266.1615 ml
10 oz
295.735 ml
11 oz
325.3085 ml
12 oz
354.882 ml
13 oz
384.4555 ml
14 oz
414.029 ml
15 oz
443.6025 ml
16 oz
473.176 ml
17 oz
502.7495 ml
18 oz
532.323 ml
19 oz
561.8965 ml
20 oz
591.47 ml
21 oz
621.0435 ml
22 oz
650.617 ml
23 oz
680.1905 ml
24 oz
709.764 ml
25 oz
739.3375 ml
26 oz
768.911 ml
27 oz
798.4845 ml
28 oz
828.058 ml
29 oz
857.6315 ml
30 oz
887.205 ml
31 oz
916.7785 ml
32 oz
946.352 ml
33 oz
975.9255 ml
34 oz
1005.499 ml
35 oz
1035.0725 ml
36 oz
1064.646 ml
37 oz
1094.2195 ml
38 oz
1123.793 ml
39 oz
1153.3665 ml
40 oz
1182.94 ml

Why Use Our Converter?

  • Accuracy: Our converter uses precise calculations to ensure you get the correct conversion every time.
  • Speed: Get instant results without any delays.
  • Ease of Use: User-friendly interface designed for everyone.

About Fluid Ounces and Milliliters

Fluid Ounces

Fluid ounces are commonly used in recipes and for measuring beverages. They provide a convenient measure for smaller volumes of liquid.


Milliliters are part of the metric system and are used worldwide in various applications, from scientific measurements to everyday uses.

Examples of Common Conversions

  • 1 Imperial fl oz = 28.4 ml
  • 1 US fl oz = 29.6 ml
  • 5 Imperial fl oz = 142 ml
  • 5 US fl oz = 148 ml
  • 10 oz = 295.735 ml
  • 20 oz = 591.47 ml

Try It Now!

Use our Ounces to Milliliters Converter to simplify your measurements and enhance your precision in any activity involving liquids. Whether you’re in the kitchen or the lab, our tool is here to assist you.

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Ounces to Milliliters Converter