Fluid Ounces to Milliliters Converter
Formula
mL = fl oz × 29.5735
One US fluid ounce equals 29.5735 milliliters.
How to use
- Type the amount in the Fluid Ounces field.
- Each fluid ounce is multiplied by 29.5735 milliliters.
- Read the converted Milliliters value below.
Example
Enter 8 in the Fluid Ounces field. The tool computes 8 × 29.5735 = 236.6, so 8 fl oz equals about 236.6 mL — that's one US cup.
Frequently Asked Questions
How many mL in 8 fl oz?
8 fl oz = 236.6 mL — that's 1 US cup.
How do I convert a recipe from fluid ounces to milliliters?
Multiply each fluid ounce measurement by 29.5735 to get milliliters, since one US fluid ounce equals about 29.57 mL. For example, a recipe calling for 4 fl oz of milk becomes roughly 118 mL. For everyday cooking, rounding 1 fl oz to about 30 mL is close enough and easier to remember.
Is a fluid ounce a measure of weight or volume?
A fluid ounce measures volume, not weight, so it tells you how much space a liquid takes up rather than how heavy it is. This is different from a dry ounce (about 28.35 grams), which measures weight. They only line up for water, where roughly 1 fluid ounce weighs about 1 ounce, but for denser or lighter liquids like honey or oil the numbers will differ.