Enter fluid ounces and choose a measurement system to get milliliters instantly. The converter works in both directions and supports adjustable precision.
A US fluid ounce equals 29.5735 mL, while an Imperial fluid ounce equals 28.4131 mL. The difference comes from their historical definitions.
Use the correct factor for the US or Imperial system and complete the conversion in three steps.
Multiply fluid ounces by 29.5735 for US measurements or by 28.4131 for Imperial measurements.
Check whether the source uses US fluid ounces or Imperial fluid ounces.
Use 29.5735 for US fl oz or 28.4131 for UK fl oz.
The product is the equivalent volume in milliliters (mL).
The conversion factor changes slightly between the US Customary and Imperial systems.
mL = fl oz × 29.5735mL = fl oz × 28.4131For the reverse conversion, divide milliliters by 29.5735 (US) or 28.4131 (UK).
These reference values use US fluid ounces. Select the Imperial system in the converter when your source uses UK fl oz.
No. One US fluid ounce is 29.5735 mL. Using 30 mL is a convenient kitchen approximation; use the exact factor when precision matters.
No. In the US system, one tablespoon is 0.5 fl oz (14.7868 mL), so two tablespoons equal one fluid ounce.
One US fluid ounce is 29.5735 mL; one Imperial fluid ounce is 28.4131 mL.
Multiply the fluid-ounce value by 29.5735 for US fl oz or 28.4131 for Imperial fl oz.
No. They are based on different gallons, so their conversion factors are different.
Yes. Enter a value in the milliliter field and the converter will calculate fluid ounces automatically.