US Fluid Ounces to Milliliters Converter
1 US fluid ounce = 29.5735 milliliters
Convert US Fluid Ounces (fl oz) to Milliliters (mL) instantly.
Conversion Formula
milliliters = fluid ounces x 29.5735
To convert US fluid ounces to milliliters, multiply by 29.5735. One US fluid ounce is defined as 1/128 of a US gallon.
US Fluid Ounces to Milliliters Table
| US Fluid Ounces (fl oz) | Milliliters (mL) |
|---|---|
| 0.5 | 14.7868 |
| 1 | 29.5735 |
| 1.5 | 44.3603 |
| 2 | 59.1471 |
| 4 | 118.294 |
| 6 | 177.441 |
| 8 | 236.588 |
| 12 | 354.882 |
| 16 | 473.176 |
| 32 | 946.353 |
About US Fluid Ounces to Milliliters
Converting fluid ounces to milliliters is a daily task for anyone following recipes, measuring medications, or comparing international product sizes.
US measuring cups are based on fluid ounces: 1 cup = 8 fl oz (236.6 mL), 1/2 cup = 4 fl oz (118.3 mL), 1/4 cup = 2 fl oz (59.1 mL). Understanding these in milliliters helps when using metric measuring equipment.
Coffee culture uses this conversion regularly. A standard espresso shot is about 1 fl oz (30 mL). A tall Starbucks coffee is 12 fl oz (354.9 mL), a grande is 16 fl oz (473.2 mL), and a venti is 20 fl oz (591.5 mL).
In mixology, cocktail recipes often list ingredients in fluid ounces. A standard jigger is 1.5 fl oz (44.4 mL). A dash is approximately 1/32 fl oz (about 0.92 mL). Converting these to metric allows use of a kitchen scale for greater accuracy.
Baby bottles are measured in both systems. Common sizes are 4 fl oz (118 mL), 8 fl oz (237 mL), and 9 fl oz (266 mL). Infant formula scoops are calibrated per ounce of water, making accurate conversion critical.
For a quick mental conversion, multiply fluid ounces by 30 to get a close approximation in mL. So 4 fl oz is about 120 mL (actual: 118.3 mL).
Frequently Asked Questions
How many mL is 8 fluid ounces?
8 fluid ounces equals 236.6 mL, which is 1 US cup. This is a standard serving size for many beverages.
How do I convert fl oz to mL for a recipe?
Multiply the fluid ounce value by 29.574. For example, 6 fl oz = 6 x 29.574 = 177.4 mL.
Is a fluid ounce the same as a weight ounce?
No. A fluid ounce (fl oz) measures volume (29.574 mL). A weight ounce (oz) measures mass (28.35 grams). They are only similar for water.
What is the difference between US and UK fluid ounces?
A US fluid ounce is 29.574 mL, while a UK (Imperial) fluid ounce is 28.413 mL. US fluid ounces are about 4% larger.