Convert ML to OZ, Free
Type any ML value and see the OZ result instantly. No button press needed.
How to convert ML to OZ
Milliliters and fluid ounces are both units of liquid volume, but they belong to different measurement systems and are not directly aligned. One US fluid ounce is 29.5735 milliliters. One Imperial fluid ounce (used in the UK) is 28.4131 milliliters. The US and Imperial ounce differ by about 4 percent, which is enough to matter in recipes and pharmaceutical dosing where precision counts.
This converter defaults to US fluid ounces, since that is what most recipe conversions, beverage labeling, and US cooking instructions use. Switch to Imperial if you are working with a UK recipe or British product specifications. The calculation runs instantly in your browser with no data transmitted to any server.
Choose US or Imperial fluid ounces
US fl oz (29.5735 mL) for American recipes, supplements, and beverages. Imperial fl oz (28.4131 mL) for UK recipes and British product labels.
Enter the milliliter amount
Type the volume in milliliters. Common reference amounts: 250 mL (1 US cup) = 8.45 fl oz, 330 mL (standard soda can) = 11.16 fl oz, 750 mL (wine bottle) = 25.36 fl oz.
Read the fluid ounce result
The result appears immediately. The formula is: fl oz = mL / 29.5735 (US) or mL / 28.4131 (Imperial).
Convert in the other direction
To convert fluid ounces to milliliters, multiply by 29.5735 (US) or 28.4131 (Imperial), or use the reverse converter.
Frequently asked questions
How many ml is a 1 fl oz shot?
A standard US shot is defined as 1.5 fl oz, which is 44.36 mL. A standard single measure in the UK is 25 mL (0.88 Imperial fl oz) or 35 mL (1.23 Imperial fl oz) depending on the establishment.
Is a fluid ounce the same as a weight ounce?
No. A fluid ounce measures volume; a weight ounce (avoirdupois ounce) measures mass. They are numerically close for water (1 fl oz of water weighs about 1.04 oz by weight) but diverge for liquids with different densities. Milk, honey, and alcohol all have different ratios.
Why does my UK recipe call for different quantities than a US version of the same recipe?
Partly the fluid ounce difference, but also cup sizes differ: a US cup is 240 mL while an Imperial cup is 284 mL. If you are converting a recipe, use weight measurements (grams) where possible to avoid these discrepancies.
How many fluid ounces is a 500 mL bottle?
500 mL / 29.5735 = 16.91 US fl oz. This is why a 500 mL bottle is often labelled as 16.9 fl oz on US packaging.