fluid ounces (US) to milliliters Converter
Type a value in fluid ounces (US) and get the answer in milliliters instantly — or convert the other way. The conversion uses the exact relationship 1 fluid ounces (US) = 29.5735 milliliters, the same formula used in textbooks and engineering references.
US recipes and nutrition labels speak in fluid ounces; the rest of the world pours in milliliters. One US fluid ounce is 29.5735 ml — about 30, which is why the two units feel like near-twins even though they are not twins.
How to use
- Type your value into the fluid ounces (US) box — the milliliters result updates as you type.
- To go the other direction, type into the milliliters box instead and read the fluid ounces (US) result.
- Copy the result with one tap, or scan the reference table below for common values.
Frequently asked questions
How do you convert fluid ounces (US) to milliliters?
Multiply the number of fluid ounces (US) by 29.5735. For example, 10 fluid ounces (US) = 295.735 milliliters. The converter above does this for you and shows more decimal places than you will ever need.
How many milliliters are in one fluid ounces (US)?
Exactly 29.5735 milliliters. This is a fixed definition, not an approximation, so the conversion is exact at any scale.
Is this converter accurate for professional use?
Yes — it uses full double-precision arithmetic and the official fluid ounces (US)-to-milliliters factor, so results are reliable for schoolwork, cooking, fitness, travel and technical work.
Can I convert milliliters back to fluid ounces (US)?
Yes. The converter is two-way: just type in the second box and the first box updates instantly with the reverse conversion.