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Convert US Fluid Ounce to Milliliter

Convert US fluid ounces (fl oz) to milliliters (ml). Whether you're scaling a recipe, measuring medicine, or converting drink sizes, this volume converter gives you the exact ml equivalent in seconds. Multiply any fl oz value by 29.5735 to get milliliters.

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Conversion Formula

To convert US Fluid Ounce to Milliliter:

1 fl oz = 29.57352956 ml

Example Values

US Fluid OunceMilliliter
1 fl oz29.57352956 ml
2 fl oz59.14705912 ml
4 fl oz118.2941182 ml
8 fl oz236.5882365 ml
12 fl oz354.8823547 ml
16 fl oz473.176473 ml
24 fl oz709.7647095 ml
32 fl oz946.352946 ml

Frequently Asked Questions

How many milliliters are in 1 fluid ounce?

1 US fluid ounce equals 29.5735 milliliters. The UK imperial fluid ounce is slightly smaller at 28.4131 ml. In nutrition labeling, 1 fl oz is often rounded to 30 ml for simplicity.

How do I convert fl oz to ml by hand?

Multiply the number of fluid ounces by 29.5735. For example, 8 fl oz × 29.5735 = 236.59 ml. For a quick estimate, multiply by 30.

What is the difference between US and UK fluid ounces?

A US fluid ounce equals 29.5735 ml, while a UK (imperial) fluid ounce equals 28.4131 ml. The difference is about 4%, so for precise cooking or medical measurements it is important to know which system a recipe uses.

How many ml is 8 fl oz?

8 US fluid ounces equals approximately 236.59 ml — the equivalent of one standard cup. This is a common measurement in American recipes and coffee shop drink sizes.

How many fl oz are in 1 liter?

There are approximately 33.81 US fluid ounces in 1 liter (1000 ml ÷ 29.5735). A standard 500 ml water bottle holds about 16.9 fl oz.