Fluid Ounces to Millilitres

1 US fluid ounce = 29.5735 ml. Note: the UK imperial fluid ounce is 28.4131 ml — this converter uses the US definition.

Fl oz (US) to Millilitre (ml) conversion table

Fl oz (US) Millilitre (ml)
0.5 fl oz14.7867 ml
1 fl oz29.5735 ml
2 fl oz59.147 ml
4 fl oz118.294 ml
6 fl oz177.441 ml
8 fl oz236.588 ml
10 fl oz295.735 ml
12 fl oz354.882 ml
16 fl oz473.176 ml
32 fl oz946.352 ml

About Fluid Ounces to Millilitres

The US fluid ounce (fl oz) equals 29.5735 ml. For practical cooking purposes, 1 fl oz ≈ 30 ml is accurate enough for most recipes. A US cup contains 8 fl oz = 236.588 ml (or 240 ml by culinary convention).

Fluid ounces are common on US product labels for liquid volumes — bottles of beer (12 fl oz = 355 ml), canned beverages (16 fl oz = 473 ml), and wine bottles (25.36 fl oz = 750 ml). US recipes occasionally specify vanilla extract or other flavourings in fl oz, though teaspoons are more common.

Be careful when using UK recipes: the imperial fluid ounce is 28.4131 ml — about 4% smaller than the US fl oz. For small quantities (a tablespoon of vanilla) the difference is negligible, but for larger volumes it can matter. This converter uses the US standard throughout.

Frequently asked questions

How many ml is 1 fl oz?

1 US fluid ounce equals 29.5735 ml. Rounded for cooking purposes, 1 fl oz ≈ 30 ml.

How many fl oz is 100 ml?

100 ml equals 3.38 US fluid ounces.

Is a UK fluid ounce the same as a US fluid ounce?

No. The UK (imperial) fluid ounce is 28.4131 ml; the US fluid ounce is 29.5735 ml. This converter uses the US definition.