what are the mason jar sizes

Mason Jar Sizes: A Comprehensive Guide

By Daniel MooreApril 12, 2026

Mason jars, iconic for their versatility and durability, come in a variety of sizes. Whether you're preserving foods, storing dry goods, or using them for decorative purposes, understanding the different mason jar sizes is crucial. Let's explore the most common sizes and their uses.

Mason jars are typically measured by their mouth diameter, which determines the size of the lid and the jar's capacity. The most common sizes are quart, pint, half-pint, and various widths of wide-mouth jars.

Standard Mouth Mason Jars

Standard mouth mason jars are the most common and versatile. They have a 70 mm (2.75") mouth diameter and come in several sizes.

These jars are ideal for canning, preserving, and storing a wide range of foods. They're also great for dry goods like grains, beans, and pasta.

Quart Jars

Quart jars have a capacity of about 32 ounces (946 ml) and are excellent for large quantities of food. They're perfect for canning large fruits like peaches or tomatoes, and for storing bulk dry goods.

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Pint Jars

Pint jars hold about 16 ounces (473 ml) and are ideal for smaller quantities of food. They're great for canning smaller fruits like berries, or for storing smaller quantities of dry goods.

Pint jars are also a good size for individual servings, making them useful for meal prepping and portion control.

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four mason jars labeled with measurements for each jar and the labels below them are labeled

the sizes of mason jars are shown with measurements for each jar in front of them

Wide-Mouth Mason Jars

Wide-mouth mason jars have a 86 mm (3.38") mouth diameter, making them easier to fill, empty, and clean. They're also more comfortable to drink from, making them popular for beverages and large pieces of food.

These jars are perfect for storing large pieces of fruit, vegetables, or for making and storing beverages like smoothies or iced tea.

Half-Pint Jars

Half-pint jars have a capacity of about 8 ounces (237 ml) and are a convenient size for small quantities of food. They're great for canning small fruits like berries, or for storing small quantities of dry goods.

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mason jars are shown with measurements for each jar

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six mason jars are shown with the names and measurements for each jar in front of them

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These jars are also a good size for individual servings, making them useful for meal prepping and portion control.

Wide-Mouth Quart Jars

Wide-mouth quart jars have a capacity of about 32 ounces (946 ml) and are excellent for large quantities of food. They're perfect for canning large pieces of fruit or for storing bulk dry goods.

These jars are also great for making and storing large quantities of beverages like iced tea or smoothies.

When choosing mason jars, consider the size and type of food you'll be storing, as well as your storage space. Whether you're preserving food, storing dry goods, or using jars for decorative purposes, there's a mason jar size to fit your needs. Happy storing!