Ounces to Milliliters Converter

Ounces are standard measurement units for liquids; however, it may be helpful to know that quantity in milliliters: find it quickly with our ounces to milliliters converter.

Here you will learn:

• What is a fluid ounce?
• The different types of fluid ounces;
• How to convert from fluid ounce to milliliters; and
• How to use our fluid ounces to milliliters converter.

Keep reading! 🥛

A fluid ounce, despite the name, is not a liquid but a measurement unit. Commonly used in the imperial system, it is particularly useful to indicate everyday quantities of liquids—being good where milliliters and liters are respectively too small or too big.

Ounces are abbreviated in fl oz, or fl. oz.. There are two widespread units with the same name, but they differ in their value:

• The British Imperial fluid ounce; and
• The United States Customary fluid ounce.

Be careful, and remember to be sure which one you are using!

An imperial fluid ounce is defined in terms of the imperial gallon:

While the US fluid ounce is defined using the US liquid gallon:

Let's check how to convert from ounces to milliliters: jump with us to the metric system!

We need two conversions for the two different types of fluid ounces.

The conversion for the imperial fluid ounces is:

While the US fluid ounces follows a slightly different conversion:

The difference between the two is slightly more than $4\%$: in everyday life, it's not relevant—your cake will be delicious anyway. However, it is fundamental to be sure of the units you are working with when it comes to measurements that require better accuracy.

Misunderstanding on the topic caused, over the years, millions of dollars in damages!

Our fluid ounces to milliliters converter is straightforward to use! Choose which one of the two units you desire to convert from and input the value. In the blink of an eye, we will give you the answer: as easy as drinking a glass of water. Or should we say, "As easy as drinking eight fluid ounces of water"? 😉

We have many other conversion tools here at Omni. Why don't you try the:

• Volume converter;
• Cubic inches to gallons converter;
• Cubic feet to gallons converter;
• Gallons to cubic feet converter;
• l to gal converter;
• ml to oz converter;
• ml to tbsp converter;
• ml to tsp converter;
• Cups to oz converter;
• tbsp to ml converter; and
• tsp to ml converter.

Depending on which units you are using, there are two conversions:

• For the US fluid ounce, 1 fl oz = 29.6 ml; and
• For the British fluid ounce, 1 fl oz = 28.4 ml.

There are 29.6 milliliters in a US fluid ounce, while 28.4 milliliters in a British fluid ounce. The difference dates back to 1824!

The volume of a glass of water, which is 8 US fluid ounces, correspond to 237 ml. Some says you need 8 glasses of water a day: that's 64 ounces! Even if there is little scientific backing to that claim, remember to keep hydrated!