Mason Jar Sizes: Complete Size, Capacity, and Dimensions Guide

Choosing the right mason jar is easier when you understand its capacity, dimensions, mouth size, and intended use. At ProPackInsights, we look at product measurements from a practical packaging perspective, so this guide goes beyond a simple list of jar sizes. Whether you are comparing canning jars, planning food storage, choosing jars for drinks, or working with product packaging, knowing the difference between an 8 oz jar, pint jar, quart jar, and larger mason jar can save time and prevent mistakes.

Mason jars come in several capacities and shapes. Common options include 4 oz, 8 oz, 12 oz, 16 oz, 24 oz, 32 oz, and 64 oz sizes. Some are regular-mouth jars, while others use a wide-mouth design. Their actual dimensions can also vary by manufacturer and jar style.

This mason jar size guide explains the most common capacities, measurements, weights, mouth types, and practical uses so you can select the right jar for your project.

Mason Jar Sizes at a Glance

The easiest way to compare mason jars is by capacity.

Mason Jar Size	Approx. Metric Capacity	Common Use
4 oz	118 mL	Samples, jams, small portions
8 oz	237 mL	Jams, sauces, gifts
12 oz	355 mL	Drinks and preserves
16 oz	473 mL	Pint storage, drinks
24 oz	710 mL	Food storage and beverages
32 oz	946 mL	Pickles, dry goods, drinks
64 oz	1.89 L	Large-batch storage

These are approximate volume equivalents. Actual jar specifications can vary between brands and models.

What Are the Most Common Mason Jar Sizes?

Mason jars are available in different sizes because they serve different storage and preservation needs.

8 oz Mason Jar

An 8 oz jar holds approximately 237 mL.

It is a popular small mason jar size for:

• Jam
• Jelly
• Honey
• Sauces
• Spices
• Small desserts
• Homemade gifts

An 8 ounce jar is also useful when you want several small portions instead of one large container.

16 oz Mason Jar

A 16 oz mason jar is commonly called a pint jar.

One US pint contains 16 fluid ounces, or approximately 473 mL.

This is one of the most familiar mason jar sizes and works well for:

• Drinking
• Food storage
• Pickles
• Salsa
• Dry ingredients
• Meal preparation

The exact external dimensions depend on whether the jar has a regular or wide mouth.

24 oz Mason Jar

A 24 oz jar provides more capacity than a standard pint without being as large as a quart jar.

It can be useful for:

• Cold drinks
• Smoothies
• Larger food portions
• Pickled foods
• Pantry storage

32 oz Mason Jar

A 32 oz mason jar holds approximately 946 mL.

It is commonly associated with the quart-size category.

A 32 oz jar works well for larger quantities of:

• Pickles
• Vegetables
• Sauces
• Dry foods
• Beverages
• Fermented foods

Because it holds nearly one liter, it is also a practical option for bulk household storage.

64 oz Mason Jar

A 64 oz mason jar is a much larger option. It holds approximately 1.89 liters.

This large mason jar size can be useful for:

• Large-batch beverages
• Dry food storage
• Fermentation
• Kitchen displays
• Bulk ingredients

When choosing a large jar, remember that capacity is only one factor. Shelf height, jar diameter, lid type, and filled weight also matter.

Mason Jar Size Chart

Here is a more detailed canning jar sizes chart for quick reference.

Capacity	Approx. Milliliters	Approx. Liters	Typical Category
4 oz	118 mL	0.12 L	Small
8 oz	237 mL	0.24 L	Small
12 oz	355 mL	0.36 L	Small/Medium
16 oz	473 mL	0.47 L	Pint
24 oz	710 mL	0.71 L	Medium
32 oz	946 mL	0.95 L	Quart
64 oz	1,893 mL	1.89 L	Large

The terms used by manufacturers can differ, so always check the product’s stated capacity before ordering jars in bulk.

How Many Ounces Are in a Mason Jar?

There is no single answer because mason jars come in many sizes.

A mason jar may hold:

• 4 oz
• 8 oz
• 12 oz
• 16 oz
• 24 oz
• 32 oz
• 64 oz

When someone asks how many ounces in a mason jar, they usually mean a specific jar capacity.

For example, a pint jar is 16 oz, while a quart jar is 32 oz.

So asking for the capacity without identifying the jar size can lead to confusion.

How Many Milliliters Are in a Mason Jar?

The same principle applies to milliliters.

A few common conversions are:

• 8 oz ≈ 237 mL
• 16 oz ≈ 473 mL
• 24 oz ≈ 710 mL
• 32 oz ≈ 946 mL
• 64 oz ≈ 1,893 mL

These conversions describe volume, not the physical dimensions of the glass jar.

What Are Mason Jar Dimensions?

Mason jar dimensions include more than capacity.

When measuring a jar, you may need to consider:

• Height
• Outside diameter
• Base diameter
• Mouth diameter
• Internal opening
• Shoulder width
• Lid diameter
• Overall capacity

Two jars can hold a similar amount of liquid while having different shapes.

For packaging and storage planning, physical dimensions are just as important as volume.

If you need help understanding how dimensions are normally described, see our guide on What Is Width and Length? It explains the difference between common product measurements and why dimension order matters.

Wide Mouth vs Regular Mouth Mason Jars

One of the biggest differences between mason jars is the mouth design.

Regular-Mouth Mason Jars

Regular-mouth jars have a narrower opening and are commonly used for:

• Traditional canning
• Jams
• Jellies
• Sauces
• General food storage

Their narrower opening can make them convenient for liquids and certain preserved foods.

Wide-Mouth Mason Jars

Wide-mouth mason jars have a larger opening.

They are useful for:

• Large food pieces
• Pickles
• Whole fruits
• Meal prep
• Easy cleaning
• Drinking

The larger opening also makes it easier to place and remove food from the container.

Wide Mouth Mason Jar Dimensions

There is no single universal dimension for every wide-mouth jar.

The exact width and height depend on capacity and manufacturer.

A wide-mouth jar typically has a larger opening than a regular-mouth version of a similar capacity. This changes how the jar feels in use, but it does not automatically mean the jar has a larger overall capacity.

For accurate packaging work, use the manufacturer’s technical specification rather than estimating dimensions from the jar’s capacity.

Mason Jar Specifications to Check Before Buying

If you are purchasing mason jars for a business, packaging project, or large-scale food preparation, check the full specifications.

Important details include:

Capacity

Confirm whether the listed capacity is 8 oz, 16 oz, 32 oz, or another size.

Height

Measure the jar from its base to the highest point.

Height matters when jars must fit inside:

• Shelves
• Cabinets
• Shipping cartons
• Display boxes
• Refrigerators

Diameter

The diameter determines how much horizontal space each jar needs.

This is especially important when calculating carton capacity.

Mouth Type

Confirm whether the jar uses a regular mouth or wide mouth.

Lid Compatibility

Not every lid fits every jar. Check the correct lid diameter and thread specification.

Glass Weight

The weight of the empty jar affects shipping costs and handling requirements.

How Much Does a Mason Jar Weigh?

The answer depends on the jar’s size and construction.

A larger glass jar generally weighs more than a smaller jar, but two jars with the same capacity can have different weights because of glass thickness and design.

For example, a thick-walled 16 oz jar may weigh more than a lightweight jar with the same nominal capacity.

This is why mason jar weight should be checked from the manufacturer’s specification when shipping costs or carton weight matter.

Do not confuse the jar’s empty weight with the weight of its contents.

How Much Does a Mason Jar Weigh in Grams?

The answer varies by model.

For example, a 16 oz mason jar weight in grams cannot be determined from its 16 oz capacity alone.

Why?

Because 16 oz describes the jar’s volume capacity. It does not tell you how much glass was used to manufacture the jar.

If you need to convert a known weight from ounces to grams, our guide How Many Grams in an Ounce? covers that conversion separately.

How Much Does a Mason Jar Hold?

The amount a mason jar holds depends on its stated capacity.

For example:

• Small mason jar: around 4–8 oz
• Medium jar: around 12–24 oz
• Pint jar: 16 oz
• Quart jar: 32 oz
• Large mason jar: 64 oz or more

However, the practical fill level can differ from the nominal capacity.

Canning also requires appropriate headspace, so a jar should not simply be filled to the very top.

Mason Jars for Drinking

Mason jars are often used as drinking glasses.

A 16 oz mason jar is especially popular because its pint-size capacity is convenient for water, iced tea, lemonade, and other beverages.

For drinking, wide-mouth jars can make it easier to add ice and clean the inside.

Some users also choose mason jar lids designed specifically for drinking.

These may include:

• Straw openings
• Drinking ports
• Reusable covers
• Sealed travel lids

Always use a lid intended for the specific jar model.

Canning Jar Sizes and Their Uses

Different canning jars are suited to different quantities.

Jar Capacity	Good For
4 oz	Small batches and samples
8 oz	Jams and sauces
12 oz	Small preserves and drinks
16 oz	Pint recipes and storage
24 oz	Medium portions
32 oz	Pickles and larger batches
64 oz	Bulk storage

The best jar depends on the food, recipe, preservation method, and required headspace.

A Practical Example: Choosing a Jar for Homemade Jam

Suppose you are preparing a small batch of homemade strawberry jam.

Using one large jar may not be practical if the jam is intended as gifts.

Instead, several 8 oz jars can provide smaller portions and easier distribution.

The same product quantity can therefore be packaged differently depending on the intended use.

This illustrates an important packaging principle: the best container size depends on the customer and application, not just the amount of product.

A Practical Example: Choosing a Jar for Drinks

Imagine a café preparing iced drinks for customers.

A 16 oz mason jar provides a familiar serving size and enough room for ice. A larger 32 oz jar may be better for sharing or large beverages.

The jar’s capacity, physical dimensions, weight, and lid compatibility all need to be considered together.

This is why selecting packaging based only on ounces can lead to poor results.

Mason Jar Sizes for Storage

Mason jars are also useful for dry goods.

Common storage items include:

• Rice
• Beans
• Pasta
• Flour
• Sugar
• Spices
• Nuts
• Seeds

For pantry organization, consider both capacity and shelf dimensions.

A tall narrow jar may fit better on one shelf, while a shorter wide jar may be easier to access.

You can learn more about packaging and storage measurements through our guide on Bankers Box Dimensions, which explains how physical dimensions affect storage planning.

What Size Mason Jar Should You Choose?

Use the following simple guide:

Choose 4–8 oz for small portions, samples, jams, and gifts.

Choose 12–16 oz for drinks, personal portions, and everyday storage.

Choose 24–32 oz for larger food portions, pickles, and pantry storage.

Choose 64 oz when you need bulk storage or large-volume beverages.

If the jar will be shipped, also consider its filled weight and carton dimensions.

Mason Jar Sizes and Packaging

For businesses, selecting a mason jar is not just about appearance.

The jar must work with the entire packaging system.

Consider:

1. Jar capacity
2. Jar dimensions
3. Empty weight
4. Filled weight
5. Lid compatibility
6. Label area
7. Shipping carton size
8. Product protection
9. Storage requirements
10. Customer use

A jar that looks attractive but wastes carton space can increase shipping costs.

Likewise, a jar that holds the right volume but has too little label space may create a design problem.

Common Mason Jar Size Mistakes

Assuming Every Pint Jar Has Identical Dimensions

A pint tells you the approximate capacity. It does not guarantee identical height or diameter across manufacturers.

Confusing Capacity With Physical Size

A 32 oz jar does not tell you its exact height or width.

Ignoring the Mouth

Regular-mouth and wide-mouth jars behave differently during filling, cleaning, and use.

Forgetting Empty Jar Weight

Glass is heavy. Shipping calculations should include the container, product, lid, and packaging materials.

Choosing a Jar Without Checking the Lid

Always verify lid compatibility before purchasing large quantities.

Final Thoughts

Mason jars come in many sizes, so choosing the right one requires more than knowing its ounce capacity. The mason jar size, height, diameter, mouth style, lid compatibility, glass weight, and intended use all affect the final choice.

For quick reference, an 8 oz jar holds about 237 mL, a 16 oz pint jar holds about 473 mL, a 32 oz quart jar holds about 946 mL, and a 64 oz jar holds about 1.89 liters.

If you’re choosing jars for canning, drinking, food storage, or commercial packaging, always check the manufacturer’s exact specifications before placing an order.

The right jar should fit both the product and the way customers will use it. That approach gives you better storage, easier handling, more efficient packaging, and fewer surprises during shipping or production.

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