Convert OZ to ML, Free
Type any OZ value and see the ML result instantly. No button press needed.
How to convert OZ to ML
Fluid ounces come in two standard sizes: the US fluid ounce (29.5735 ml) and the imperial (UK) fluid ounce (28.4131 ml). To convert fl oz to ml, multiply by the correct value for your context. US recipes and nutrition labels use US fl oz; UK recipes use imperial fl oz. The difference between the two is about 4%, which matters when scaling recipes precisely or measuring medication. This converter handles both definitions and runs instantly in your browser.
Fluid ounces to milliliters is a conversion that appears constantly in kitchens, bars, and pharmacies. A 12 fl oz can of soda is 354.88 ml in the US. A UK pint is 20 imperial fl oz = 568.26 ml, while a US pint is 16 US fl oz = 473.18 ml. These differ by about 20%, which is why international recipes sometimes specify 'US pint' or 'Imperial pint' explicitly.
Enter the fluid ounce amount
Type the fl oz value. Decimals work (e.g., 1.5 fl oz for a standard cocktail shot).
Select US or Imperial (UK)
Choose US fl oz (29.5735 ml) or Imperial fl oz (28.4131 ml) depending on the recipe or spec you are working from.
Read the milliliter result
The converted volume appears instantly.
Reverse if needed
Enter ml to convert to fl oz: ml / 29.5735 (US) or ml / 28.4131 (Imperial).
Frequently asked questions
How many ml is 1 US fluid ounce?
Exactly 29.5735295625 ml.
How many ml is 1 Imperial fluid ounce?
Exactly 28.4130625 ml.
Is a fluid ounce the same as a weight ounce?
No. Fluid ounces measure volume; weight ounces measure mass. They are numerically close only for water (1 US fl oz of water weighs approximately 1.04 weight ounces).
How many fl oz is 100 ml?
100 / 29.5735 = 3.381 US fl oz. This is the maximum liquid volume allowed in airport carry-on bags per the 3-1-1 rule.
What is 8 fl oz in ml?
8 US fl oz = 236.59 ml. This is one standard US measuring cup.