How many milliliters are in 4 fl oz?

4 US fluid ounces equal 118.29 ml, and 4 Imperial (UK) fluid ounces equal 113.65 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 4 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. 4 US fl oz is 118.29 ml; 4 Imperial fl oz is 113.65 ml — a difference of 4.64 ml. If a recipe does not say, match it to where the recipe was written.

How many ml is 4 UK fluid ounces?

4 Imperial (UK) fluid ounces equal 113.65 ml. Imperial ounces are about 4% smaller than US ounces, so a British recipe calling for 4 fl oz gives slightly less liquid than 4 US ounces, which would be 118.29 ml.

How many cups is 4 fl oz?

4 US fluid ounces is half a US cup (118.29 ml). One US customary cup is 8 fluid ounces, so you can divide any fluid-ounce figure by 8 to get cups. In millilitres, 4 US fl oz is 118.29 ml and 4 Imperial fl oz is 113.65 ml.

How do you convert 4 fl oz to ml?

Multiply by the size of one fluid ounce. US: 4 × 29.5735 = 118.29 ml. Imperial: 4 × 28.4131 = 113.65 ml. To go from millilitres back to fluid ounces, divide by the same factor.

Does 4 fl oz of water weigh 118.29 grams?

Roughly, yes. Water is about 1 gram per millilitre, so 4 US fluid ounces (118.29 ml) of water weighs close to 118.29 g. This only works for water and thin water-like liquids; oil, syrup and flour all have different densities, so their weight will not match their volume in millilitres.

4 fl oz in ml

4 fl oz in ml is 118.29 ml using US fluid ounces, or 113.65 ml using Imperial (UK) fluid ounces. Four fluid ounces is exactly half a US cup, the amount in a small juice glass. This page gives you both conversions, a live fluid-ounce converter that also handles cups, tablespoons, teaspoons, litres an…

FL OZ CONVERTER

Fluid ounces

Ounce type

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

Convert to

4 US fl oz =

118.29

Milliliter

LIVE DIAGRAM

US FLUID OUNCE

118.29

milliliters

IMPERIAL (UK)

113.65

milliliters

US vs IMPERIAL — 4 FL OZ

US118.29 ml

Imperial (UK)113.65 ml

The US ounce is larger by 4.64 ml (4.1%) at this amount.

VISUAL FILL

50% of a US cup

1 US cup = 236.59 ml

Created with❤️byeaglecalculator.com

4 FL OZ IN ML

4 FLUID OUNCES → MILLILITERS

4 US fluid ounces	118.29 ml	× 29.5735 ml
4 Imperial (UK) fluid ounces	113.65 ml	× 28.4131 ml

Four fluid ounces is exactly half a US cup, the amount in a small juice glass. 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.

4 US FL OZ IN OTHER UNITS

MILLILITERS

118.29 ml

LITRES

0.118 L

US TABLESPOONS

8 tbsp

US TEASPOONS

24 tsp

US CUPS (240 ML)

0.493 cups

HOW TO USE

1
Enter the number of fluid ounces you want to convert — this page starts with 4.
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

4 US fluid ounces come to 118.29 ml, while 4 Imperial ounces are 113.65 ml — a gap of 4.64 ml at this size. Because US ounces are the larger of the two, US measurements always yield slightly more liquid than the same count of Imperial ounces.

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Last updated: July 28, 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.

4 fl oz in ml

FL OZ CONVERTER

LIVE DIAGRAM

4 FL OZ IN ML

4 US FL OZ IN OTHER UNITS

HOW TO USE

GOOD TO KNOW

FREQUENTLY ASKED QUESTIONS

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