US Fluid Ounces to ml Converter

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Convert US fluid ounces to milliliters using the exact factor 1 US fl oz = 29.5735 ml. A 12 fl oz soda can is 354.88 ml; a 20 fl oz US bottle is 591.47 ml. Useful for translating US drink sizes and recipe ingredients into the metric volumes used by European kitchen scales and measuring jugs. The UK fluid ounce (28.41 ml) is a different unit. Browser-local.

Fluid ounce (US)
Milliliter (ml)

Fluid ounce (US) → Milliliter (ml)

Quick reference table

Fluid ounce (US)Milliliter (ml)
1 fl oz (US)29.5735 ml
2 fl oz (US)59.1471 ml
5 fl oz (US)147.8677 ml
10 fl oz (US)295.7353 ml
25 fl oz (US)739.3382 ml
50 fl oz (US)1478.6765 ml
100 fl oz (US)2957.353 ml

Glossary

US fluid ounce (fl oz)

A US fluid ounce is exactly 1/128 of a US gallon, or about 29.5735 ml. It is the dominant volume unit on US food, drink and personal-care packaging. Eight US fluid ounces make one US cup; 16 make a US pint; 32 make a quart; 128 make a US gallon. Do not confuse with the UK fluid ounce (≈28.41 ml).

Milliliter (ml)

A milliliter is one thousandth of a liter and exactly one cubic centimeter (1 ml = 1 cm³ = 0.001 L). It is the everyday metric unit for medication doses, beverage cans, cooking ingredients and lab work. A typical wine glass holds 175 ml; a standard espresso shot is about 30 ml; a 0.5 L water bottle is 500 ml.

Metric / SI volume

In the metric system, volume is reported in liters (everyday) or cubic meters (industrial), with millilters for fine resolution. The relations are exact powers of ten: 1 m³ = 1,000 L = 1,000,000 ml, and 1 ml = 1 cm³. The metric system is the standard worldwide for science, beverages, fuel in metric countries, and most modern recipes outside the United States.

Imperial / US Customary volume

US customary and UK imperial systems both use gallon, quart, pint and fluid ounce — but with different sizes. The US gallon is 3.785 L (128 US fl oz); the UK imperial gallon is 4.546 L (160 UK fl oz). Cooking units (tsp = 4.93 ml, tbsp = 14.79 ml, cup = 240 ml) follow the US standard in nearly all modern English-language recipes.

Related tools

Milliliters to US Fluid Ounces
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US Fluid Ounces to Tablespoons
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