How many milliliters are in 8 fl oz?

8 US fluid ounces equal 236.59 ml, and 8 Imperial (UK) fluid ounces equal 227.30 ml. Use the US figure for American recipes, nutrition labels and cups; use the Imperial figure in the UK, Ireland, Australia and Canada. They differ because a US fluid ounce is 29.5735 ml while an Imperial fluid ounce is 28.4131 ml.

Is 8 fl oz measured in US or Imperial ounces?

By default, 'fl oz' means US fluid ounces in the United States and Imperial fluid ounces in the UK and Commonwealth. 8 US fl oz is 236.59 ml; 8 Imperial fl oz is 227.30 ml — a difference of 9.28 ml. If a recipe does not say, match it to where the recipe was written.

How many ml is 8 UK fluid ounces?

8 Imperial (UK) fluid ounces equal 227.30 ml. Imperial ounces are about 4% smaller than US ounces, so a British recipe calling for 8 fl oz gives slightly less liquid than 8 US ounces, which would be 236.59 ml.

How many cups is 8 fl oz?

8 US fluid ounces is exactly 1 US cup (236.59 ml). One US customary cup is 8 fluid ounces, so you can divide any fluid-ounce figure by 8 to get cups. In millilitres, 8 US fl oz is 236.59 ml and 8 Imperial fl oz is 227.30 ml.

How do you convert 8 fl oz to ml?

Multiply by the size of one fluid ounce. US: 8 × 29.5735 = 236.59 ml. Imperial: 8 × 28.4131 = 227.30 ml. To go from millilitres back to fluid ounces, divide by the same factor.

Is a cup really 8 ounces?

For US volume, yes: 1 US customary cup = 8 US fluid ounces = 236.59 ml. The catch is that this only holds for fluid ounces (volume), not ounces of weight. 8 ounces of a light ingredient like flour weighs far less than 8 fluid ounces of water, so never swap fluid ounces for weight ounces in a recipe.

8 fl oz in ml

8 fl oz in ml is 236.59 ml using US fluid ounces, or 227.30 ml using Imperial (UK) fluid ounces. Eight fluid ounces is the one everyone remembers: exactly one US customary cup. This page gives you both conversions, a live fluid-ounce converter that also handles cups, tablespoons, teaspoons, litres a…

FL OZ CONVERTER

Fluid ounces

Ounce type

1 US fl oz = 29.5735 ml · 1 Imperial fl oz = 28.4131 ml

Convert to

8 US fl oz =

236.59

Milliliter

LIVE DIAGRAM

US FLUID OUNCE

236.59

milliliters

IMPERIAL (UK)

227.30

milliliters

US vs IMPERIAL — 8 FL OZ

US236.59 ml

Imperial (UK)227.30 ml

The US ounce is larger by 9.28 ml (4.1%) at this amount.

VISUAL FILL

1 US cup +

1 US cup = 236.59 ml

Created with❤️byeaglecalculator.com

8 FL OZ IN ML

8 FLUID OUNCES → MILLILITERS

8 US fluid ounces	236.59 ml	× 29.5735 ml
8 Imperial (UK) fluid ounces	227.30 ml	× 28.4131 ml

Eight fluid ounces is the one everyone remembers: exactly one US customary cup. Unless a recipe or label says otherwise, US fluid ounces are the default in the United States, while UK, Irish, Australian and Canadian recipes use the slightly smaller Imperial fluid ounce.

8 US FL OZ IN OTHER UNITS

MILLILITERS

236.59 ml

LITRES

0.237 L

US TABLESPOONS

16 tbsp

US TEASPOONS

48 tsp

US CUPS (240 ML)

0.986 cups

HOW TO USE

1
Enter the number of fluid ounces you want to convert — this page starts with 8.
2
Choose whether your figure is in US or Imperial (UK) fluid ounces using the toggle.
3
Pick a target unit — millilitres, litres, cups, tablespoons, teaspoons or pints — and read the result instantly.

GOOD TO KNOW

This is where the kitchen rule 'a cup is 8 ounces' comes from: 8 US fluid ounces is exactly one US customary cup, 236.59 ml. Note the US 'legal' cup used on nutrition labels is rounded to 240 ml.

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Last updated: July 29, 2026 · Conversion factors: 1 US fl oz = 29.5735295625 ml, 1 Imperial fl oz = 28.4130625 ml · Verified by the EagleCalculator team · Eagle-eyed accuracy for every calculation.

8 fl oz in ml

FL OZ CONVERTER

LIVE DIAGRAM

8 FL OZ IN ML

8 US FL OZ IN OTHER UNITS

HOW TO USE

GOOD TO KNOW

FREQUENTLY ASKED QUESTIONS

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