One fluid ounce (US) is equal to approximately 29.5735 milliliters. For practical conversions, you multiply the number of ounces by 29.5735 to get the volume in milliliters. For example, 8 fluid ounces is about 236.588 milliliters
. Note that there is a slight difference between the US fluid ounce and the British (Imperial) fluid ounce:
- 1 US fluid ounce = 29.5735 ml
- 1 British fluid ounce = 28.4131 ml
So, when converting fluid ounces to milliliters, it’s important to know which system you are using.