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Fluid Ounces to ML Converter

Convert US fluid ounces to milliliters instantly, with a reference table for cocktails, baby bottles and drink sizes.

Ounces to ML Converter

1 fl oz = 29.574 mL

Multiply US fluid ounces by 29.57352956 to get milliliters.

The link carries the values you entered, so whoever opens it sees the same result. Nothing is stored on our side — the numbers travel in the link itself.

US fluid ounces to milliliters reference table

The conversions people look up most often, rounded to 3 decimal places.

Common US fluid ounces to milliliters conversions
US fluid ounce (fl oz)Milliliter (mL)
0.5 fl oz14.787 mL
1 fl oz29.574 mL
1.5 fl oz44.36 mL
2 fl oz59.147 mL
4 fl oz118.294 mL
6 fl oz177.441 mL
8 fl oz236.588 mL
12 fl oz354.882 mL
16 fl oz473.176 mL
20 fl oz591.471 mL
24 fl oz709.765 mL
32 fl oz946.353 mL
64 fl oz1,892.706 mL

The US fluid ounces people look up most

1.5 fl oz = 44.36 mL
A standard American shot, against the UK’s 25 or 35 ml measure and Europe’s 40 ml - which is why an American cocktail made with UK measures comes out weaker.
8 fl oz = 236.588 mL
One US cup - a metric cup is 250 ml, so recipes do not swap cleanly between the two.
12 fl oz = 354.882 mL
The standard American soda can, against the 330 ml can used across Europe.
16 fl oz = 473.176 mL
A US pint - the imperial pint is 568 ml, and the gap is what shrinks a pint of beer in America.

How the ounces to ml calculation works

A US fluid ounce is 29.5735295625 milliliters:

milliliters = US fluid ounces × 29.57353

This converter uses the US fluid ounce. The imperial one, still printed on some British packaging, is 28.4131 ml — roughly 4% smaller. On a single measure the difference is a millilitre or two; across a 20 fl oz imperial pint against a 16 fl oz US pint, it is 95 ml.

Bar measures are the most common reason to convert:

  • 1 fl oz → 29.57 ml
  • 1.5 fl oz (a standard US shot) → 44.36 ml, against the UK's 25 ml or 35 ml measures and Europe's 40 ml
  • 2 fl oz (a double) → 59.15 ml
  • 4 fl oz → 118.29 ml

An American cocktail recipe scaled with 25 ml measures comes out 44% weaker than intended, which is enough to change the drink rather than just soften it.

Other volumes:

  • 8 fl oz (a US cup) → 236.59 ml
  • 12 fl oz (a soda can) → 354.88 ml
  • 16 fl oz (a US pint) → 473.18 ml
  • 20 fl oz (an imperial pint, in imperial ounces) → 568.26 ml
  • 32 fl oz (a quart) → 946.35 ml

Baby bottles are marked in both, and the graduations rarely line up: a bottle marked 4 oz and 120 ml is rounding 118.29 up. Follow whichever scale the formula instructions use, and do not mix them within a feed.

For quick work, multiply by 30.

Frequently asked questions

How big is the cup on a coffee machine?

Not eight fluid ounces. A drip coffee maker’s cup is usually 5 fl oz, about 148 ml, so a twelve-cup carafe holds 60 fl oz - 1.77 L - rather than the 96 fl oz a kitchen cup would imply. Japanese rice cookers do the same thing with a 180 ml cup. Trust the markings on the carafe rather than the number on the box.

Does a fluid ounce of honey weigh the same as one of water?

No, and honey is the extreme. A US fluid ounce of water weighs about 29.6 g; the same volume of honey weighs around 42 g, of golden syrup about 43 g, and of oil about 27 g. A recipe that gives sticky ingredients by volume is asking you to accept that spread, which is why modern baking books give them in grams instead.

How much is a fifth of spirits?

A fifth of a US gallon, which is 25.6 fl oz or 757 ml. American spirits were bottled at that size until the trade went metric in 1980 and settled on 750 ml - 25.4 fl oz, about 7 ml less. The word survived the change, so a fifth now means a 750 ml bottle that is no longer a fifth of anything.

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Further reading