A pint Mason jar holds 16 fluid ounces, which equals 1 US pint or about 473 milliliters.
For the full breakdown, see our best 1 Pint Mason Jars guide.
The size question behind a pint Mason jar comes down to one number: 16 ounces. That capacity—not a specific height or shape—defines the jar. You’ll find pint jars in two mouth styles, regular and wide, and the physical dimensions differ slightly between them.
Pint Mason Jar Capacity: The Number That Matters
When someone asks how big a pint Mason jar is, the honest answer is about volume. A pint jar holds 16 US fluid ounces. In metric terms, that’s approximately 473 mL. The “pint” label describes capacity, not the jar’s silhouette.
One common point of confusion involves the imperial pint. The US pint (16 fl oz) is smaller than the UK imperial pint, which holds 20 fluid ounces. If a recipe or canning instruction comes from outside the US, confirm which pint it means before measuring ingredients.
Regular-Mouth vs. Wide-Mouth Dimensions
Pint jars come in two formats, and their dimensions differ.
More generally, regular-mouth pint jars run about 5.0–5.9 inches high and 3.5–3.6 inches wide. Wide-mouth versions are roughly 4.75–6.81 inches tall and 3.25–3.5 inches wide. The physical height varies by brand and style, so check the listing if shelf space is a concern.
Lid size depends on the mouth, not the pint capacity. Regular-mouth jars use a smaller lid that won’t fit a wide-mouth jar. Don’t assume the lids interchange—they don’t.
| Characteristic | Regular-Mouth Pint | Wide-Mouth Pint |
|---|---|---|
| Capacity | 16 oz / 473 mL | 16 oz / 473 mL |
| Typical Height | 5.0–5.9 inches | 4.75–6.81 inches |
| Typical Width | 3.5–3.6 inches | 3.25–3.5 inches |
| Lid Size | Smaller (not 86 mm) | 86 mm |
| Best For | Sauces, jams, drinks | Pickles, relishes, wide items |
What Fits Inside a Pint Jar?
Knowing the 16-ounce capacity helps you plan. A pint jar comfortably holds salsas, sauces, relishes, pickles, and overnight oats. Many people also use them for jams and as drinking glasses. The wide-mouth version makes filling and cleaning easier for chunkier contents.
These markings help with portioning, but they are volume guides—not a substitute for tested canning headspace instructions.
If you’re considering a purchase, our roundup of the top 1 pint mason jars can help you compare styles.
Ball’s own product pages confirm that a pint jar is a canning jar. For actual food preservation, you must match the correct lid, mouth size, and canning method to your specific jar model. Treating the jar markings as canning headspace guidance is a mistake, as is confusing a US pint with an imperial one.
FAQs
Is a pint Mason jar the same as a half-quart jar?
Yes. One US quart equals 32 fluid ounces, so a pint jar (16 ounces) is exactly half a quart. You may see some brands label these jars as “half-quart,” but the capacity is identical to a pint.
Can I use regular-mouth lids on a wide-mouth pint jar?
No. Wide-mouth jars require 86 mm lids, while regular-mouth jars use a smaller size. The threads and diameters differ, so lids are not interchangeable between the two mouth styles.
Why does my pint jar look shorter than another pint jar?
Manufacturers shape pint jars differently. One brand may produce a short, wide jar while another makes a taller, narrower version. Both still hold 16 fluid ounces, so the appearance difference doesn’t change the capacity.
References & Sources
- Ball Mason Jars. “Ball® Nesting Mason Jars & Lids, Wide Mouth 16oz Pint / 4pk.” Product page confirming 16 oz / Pint capacity and dimensions.
- Ball Mason Jars. “Ball® Flute Mason Jars & Lids, Regular Mouth 16oz Pint / 4pk.” Product page confirming regular-mouth pint capacity and dimensions.
- Glass Rock. “Mason Jar Sizes.” General size guide for Mason jar dimensions and capacities.
