What is 12oz beer in ML?

When it comes to beer, one of the most common measurements used is the 12 ounce (oz) serving size. This is a standard beer can or bottle size in many countries. However, the metric system is used for measurements in most of the world, so it can be useful to know how to convert 12 oz to milliliters (mL). In this article, we’ll walk through the 12 oz to mL conversion and discuss some key facts about beer measurements.

Quick Conversion

To start, here is the quick answer for converting 12 oz of beer to mL:

  • 1 oz = 29.57 mL
  • 12 oz = 354.88 mL

So 12 oz of beer is equal to 354.88 mL of beer. Simply multiply the ounces by 29.57 to get the number of milliliters.

Showing the Math

Now let’s walk through the conversion math step-by-step:

  1. Begin with 12 oz of beer
  2. 1 oz equals 29.57 mL
  3. Use the formula: (oz) x (29.57 mL/1 oz) = mL
  4. Plug in the numbers: (12 oz) x (29.57 mL/1 oz) = 354.88 mL

So by multiplying the ounces by the conversion factor of 29.57 mL per 1 oz, we end up with 354.88 mL.

Converting Back to Ounces

We can also convert in the opposite direction, from mL back to oz:

  1. Start with 354.88 mL of beer
  2. Use the formula: (mL) x (1 oz/29.57 mL) = oz
  3. Plug in the numbers: (354.88 mL) x (1 oz/29.57 mL) = 12 oz

So 354.88 mL converts back to 12 oz, showing that the units convert evenly in both directions.

Key Facts on 12 oz and mL

Here are some other key facts when working with these beer measurements:

  • 1 fluid ounce (oz) = 29.57 mL
  • 1 milliliter (mL) = 0.0338 oz
  • 12 oz = 1 standard beer bottle or can size
  • 355 mL = 12 oz, a common beer bottle size
  • 1 liter (L) = 33.81 oz
  • 1 L = about 2.5 standard 12 oz beer bottles

These conversions can be useful when comparing beer amounts in recipes, when pouring beer, or estimating beer consumption.

Converting Other Beer Amounts

We can use the same process to convert other common beer amounts between oz and mL:

Ounces Milliliters
1 oz 29.57 mL
12 oz 355 mL
16 oz (1 US pint) 473 mL
22 oz (bomber bottle) 651 mL
40 oz (1 US quart) 1,183 mL = 1.18 L

This table makes it easy to quickly convert between some common beer serving sizes in ounces and milliliters.

Metric Conversions

Since the metric system is based on units of 10, it can be easier to convert between metric units of volume. Here are some key metric conversions for reference:

  • 1,000 mL = 1 L
  • 100 mL = 1 dL (deciliter)
  • 10 mL = 1 cL (centiliter)

Imperial Conversions

For imperial units, here are some useful conversions:

  • 1 oz = 2 tablespoons (tbsp)
  • 2 oz = 1 fluid ounce (fl oz)
  • 8 oz = 1 cup
  • 16 oz = 1 pint
  • 32 oz = 1 quart
  • 128 oz = 1 gallon

Typical Beer Alcohol Content

In addition to volume, another important measurement with beer is its alcohol content. Here’s the typical alcohol by volume (ABV) for different beer styles:

  • Light beer – 4-5% ABV
  • Standard beer – 4.5-6% ABV
  • Craft beer – 5-12% ABV
  • Malt liquor – 7-11% ABV
  • Belgian beer – 6-12% ABV
  • Stout beer – 4-8% ABV
  • Lambic beer – 5-7% ABV

So in a 12 oz beer, you’ll typically get around 0.5-0.7 oz of pure alcohol across styles. The math would be:

  • Standard beer with 5% ABV:
    • 12 oz beer x 0.05 ABV = 0.6 oz alcohol
  • Craft beer with 8% ABV:
    • 12 oz beer x 0.08 ABV = 0.96 oz alcohol

This gives you a sense of actual alcohol content in typical beer serving sizes.

Common Glassware for 12 oz Beer Servings

When served in a glass, 12 oz beer amounts will be poured into different glassware depending on the beer style:

Beer Style Common Glassware
Pilsner or lager Pilsner glass
Wheat beer Weizen glass
Pale ale or IPA Pint glass
Stout or porter Pint or snifter glass
Belgian beer Tulip glass

The shape of the glassware helps enhance the flavor and aroma of each beer style. So 12 oz will be poured into different glasses depending on the type of beer being served.

Beer Production and Consumption Statistics

To put these 12 oz and mL beer measurements into perspective, here are some key statistics on beer production and consumption:

  • Global beer production in 2020: 1.92 billion hectoliters or 164.8 billion 12 oz servings
  • Leading beer producing countries in 2020: China (33%), United States (14%), Brazil (6%)
  • Average beer consumption per capita globally: 33 liters or 111 Twelve oz servings
  • Highest beer consumption per capita in 2020: Czech Republic (188 liters), Austria (107 liters)
  • Average cost of a 12 oz domestic beer from a bar/restaurant in the US: $5 USD

So while 12 oz or 355 mL is a typical single serving size, when you multiply that by the billions of servings consumed worldwide, it represents a massive overall volume. Understanding these conversions allows us to better visualize and contextualize the full scale of global beer production and consumption.

Reasons to Convert 12 oz to mL

Here are some of the main reasons you may want to convert 12 oz of beer to mL:

  • Using Metric Recipes – Many recipes, especially scientific ones, will use metric units like mL. Converting 12 oz to mL allows you to plug the amount into a metric recipe.
  • Comparing Volumes – When comparing different beer serving sizes or pours, converting to mL helps standardize the units using the metric system.
  • Estimating Consumption – Converting 12 oz beers to mL can help provide standardized metrics when estimating personal or population-level beer consumption.
  • Inventory Management – Bars, restaurants, breweries, and distributors may track inventory in metric units like L and mL. Converting from 12 oz helps with inventory management.
  • Standardization – In science, medicine, and industry, the metric system provides standardized international units for measurement and precision.

Cooking and Brewing with 12 oz Beer

When cooking recipes that call for beer as an ingredient, it can be useful to know these 12 oz conversions:

Recipe Amount Milliliters
12 oz beer 355 mL beer
1 can or bottle (12 oz) beer 1 can or bottle (355 mL) beer
16 oz (US pint) beer 473 mL beer
22 oz (bomber) beer 651 mL beer

This allows you to directly substitute the mL measurement in any recipe that calls for 12 oz or other common beer amounts. Some examples of cooking with beer include:

  • Beer bread
  • Beer batter for frying fish or onions
  • Beer cheese fondue
  • Beer marinade for meats
  • Beer chocolate cake

For brewing beer from homebrew recipes, it is also useful to convert gallons of wort or water to liters and ounces to grams when measuring out ingredients. Having a handle on these metric conversions makes homebrewing easier.

Tips for Converting Units

Here are some useful tips for smoothly converting between units like 12 oz and mL:

  • Memorize some common conversions like 12 oz = 355 mL for handy reference
  • Use a chart or table to quickly look up conversion factors
  • Use a metric conversion calculator online to double-check your work
  • When multiplying, cancel units mathematically so only the desired units remain
  • Round converted values to 3-5 significant digits maximum to avoid excessive precision
  • Remember that metric prefixes like centi-, milli-, kilo- adjust units by factors of 10

Why the 12 oz Beer Standard Exists

The 12 oz or 355 mL container became the worldwide standard size for a single beer serving for several reasons:

  • Tax Laws – In the 1930s, US tax laws levied higher taxes on containers larger than 12 oz, making that the most common size.
  • Portability – A 12 oz can or bottle is a convenient size that can be easily carried, stored, and recycled.
  • Cost – Canning and bottling equipment was optimized for 12 oz as the dominant size, keeping costs lower.
  • Marketing – Major breweries found the 12 oz single-serve size ideal for branding, shipping, and selling beer.
  • Consumer Preference – Through decades of marketing and availability, consumers grew accustomed to 12 oz as the standard beer portion.

So the 12 oz beer serving size emerged from a combination of business, legal, and technological factors in the early- to mid-20th century.

Interesting Facts About 12 oz Beer Servings

Here are some more interesting facts related to the popular 12 oz beer serving amount:

  • At 1.2 specific gravity wort and 5% alcohol, 12 oz of beer contains ~13.5 grams of alcohol and 155 calories
  • Empty 12 oz aluminum cans weigh around 0.5 oz, about 1/24th of the total weight when full.
  • A six-pack of 12 oz beers contains a total volume of 2,112 mL, or 2.1 liters.
  • A 12 oz can of beer takes about 12 seconds to pour at a typical pour speed.
  • Stacking 12 oz cans directly, a 6-pack takes up about 8 inches (20 cm) of vertical height.
  • Chilled to 40 degrees F (4C), a 12 oz beer would take 10-15 minutes to warm to near room temperature.

These types of facts help provide additional context around the common 12 oz beer serving amount.

Other Typical Serving Sizes

While 12 oz is the standard beer serving, other common single serving sizes include:

  • 16 oz pint – A draft beer serving size at bars, equivalent to 473 mL.
  • 22 oz bomber – Large format bottled beers, equivalent to 651 mL.
  • 40 oz – Malt liquor and some craft beers come in this large bottle size, or 1,183 mL.
  • 60 oz growler – Take-away draft beer size from taprooms, equaling 1.7 liters.
  • 5 oz taster – Small sample size pours of craft beers to taste different styles.

So while 12 oz is the gold standard, there are many other common single serving sizes ranging from 5 oz to 60 oz.


In summary, 12 oz of beer equals 354.88 mL based on the conversion factor of 29.57 mL per fluid ounce. This allows easy switching between imperial and metric units for volume. A 12 oz beer is a ubiquitous serving size thanks to technological, legal, and business factors. But many other serving sizes exist, especially in the craft beer world. Knowing how to convert 12 oz to mL provides useful intuition for estimating beer servings for drinking, cooking, brewing, and other applications.

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