Understanding How Many Ounces in a Quart
Conversions can be confusing, but they don’t have to be! Here’s what you need to know, including the answer to the question “how many ounces are in a quart?”
Have you ever tried doubling or halving a recipe, only to find that you’re not as cut out for on-the-fly measuring as you thought you were? Same here. Though many recipe conversions are easy to mess around with, certain ingredients require precise measurements. Knowing quick conversions can make the cooking process that much easier and the result that much more successful!
Today, we’re breaking down how many ounces there are in a quart. Though the answer is quick (there are 32 oz, or 1/4 of a gallon, in a quart), there is so much information behind this measurement.
What is an ounce?
The term ounce comes from the Roman term “uncia.” What’s an uncia? It was 1/12 of a Roman copper bar! These bars were used as measuring tools to calculate the length of an inch and the weight of an ounce. Though the name hails from Rome, modern ounce weight and volume measurements come from Britain.
Let’s start with fluid ounces. A fluid ounce is 1/16th of an Imperial Pint and weighs 1/16 of a pound or 28.3 grams. In the apothecary system, an ounce was 480 grains or 1/12 of a pound. Is it any wonder Britain standardized on the metric system?
What is a quart?
The origin of “quart” is a bit clearer than that of ounces. The word quart comes from the Latin word Quartus meaning a fourth, and the later French word Quarte (or a 1/4 portion). In liquid measurements, this means 1/4 of a gallon.
Like other measurements, not all quarts are the same! An English quart is 38.43 ounces (unlike ours which is 32 oz). However, this makes sense when you consider the fact that their gallon is 153.72 oz (versus our 128 oz).
Measuring an Ounce and a Quart Internationally
Now that you know how many ounces are in a quart let’s take a look at some of the different ways to measure a quart around the world! As mentioned previously, in U.S. measurements, a quart is 946 ml. In Australia, Canada, and New Zealand, a quart is defined as 40 imperial ounces. This is equivalent to 38.43 U.S. fluid ounces, so it’s a little bit different than the quart in the United States.
Wet vs Dry Quart
Wet and dry ingredients cannot be measured the same because they are vastly different. They have different densities and need to be measured instead by volume. Liquid is less dense than solid, so it takes up more space. This is why a liquid quart contains 32 oz, while a dry quart has 37.23 oz.
Quarts to Ounces Conversion Calculator
Enter the volume in quarts below to calculate the weight in ounces.
Results in Ounces: 1 qt = 33.381617808077 oz
How to Convert Quarts to Ounces
Since quarts are a unit of volume and ounces are a unit of mass, which are different physical quantities, we need to know one more physical quantity of the ingredient or substance to convert between them. In this case, we need to account for the density of the substance whenever we do a conversion.
Therefore, to convert between quarts and ounces of an ingredient or substance, we must either multiply or divide by its density, depending on which direction we are performing the conversion.
When to Convert Quarts to Ounces
Quarts and ounces are both commonly used to measure cooking ingredients. For cooking applications, most chefs suggest measuring dry ingredients by weight rather than volume to improve accuracy in the measurements. The density of dry ingredients can vary for a variety of reasons, such as compaction and clumping.
Another useful application of weight and volume conversions is chemistry. When performing chemical reactions by combining separate chemicals to produce a new chemical, one must know the exact amount of each chemical to add in order to maximize the yield of the reaction.
How Many Ounces Are in a Quart?
The actual weight of a quart will vary depending on the density of the material. The table below shows how many ounces of various wet and dry ingredients are in a quart.
What Is a Quart?
The US liquid quart is a unit of fluid volume equal to one fourth of a gallon, two pints, or four cups. The liquid quart should not be confused with the dry quart (US) or the imperial quart, which are different units. However, when someone refers to a volume in quarts, they typically mean the US liquid quart.
What Is an Ounce?
One ounce is a unit of mass/weight equal to 1/16 of a pound or 28.349523 grams. The common ounce should not be confused with the troy ounce, which is equal to 1/12 of a troy pound. The ounce is a US customary and imperial unit of mass.
Fluid Ounce to Quart Conversion Table
Table showing various fluid ounce measurements converted to quarts.
Fluid Ounces Quarts
1 fl oz 0.03125 qt
2 fl oz 0.0625 qt
3 fl oz 0.09375 qt
4 fl oz 0.125 qt
5 fl oz 0.15625 qt
6 fl oz 0.1875 qt
7 fl oz 0.21875 qt
8 fl oz 0.25 qt
9 fl oz 0.28125 qt
10 fl oz 0.3125 qt
11 fl oz 0.34375 qt
12 fl oz 0.375 qt
13 fl oz 0.40625 qt
14 fl oz 0.4375 qt
15 fl oz 0.46875 qt
16 fl oz 0.5 qt
Frequently Asked Questions (FAQs)
1. How many ounces are in a quart?
In the US, there are 32 fluid ounces in a quart. However, the weight of a quart will vary depending on the density of the material being measured.
2. How do I convert quarts to ounces?
To convert quarts to ounces, you can use the formula: ounces = quarts × 33.3816 × density. The weight in ounces is equal to the volume in quarts multiplied by 33.3816 times the density (in g/mL) of the ingredient, substance, or material.
3. What is the difference between a fluid ounce and an ounce?
A fluid ounce measures volume, while an ounce measures weight. One fluid ounce is equal to approximately 29.5735 milliliters, but in nutrition labeling, one fluid ounce is rounded to exactly 30 milliliters.
4. Why is it important to know how many ounces are in a quart?
Knowing how many ounces are in a quart is important for accurate measurement of ingredients in cooking and baking. It helps ensure that recipes are followed correctly and that the desired results are achieved.
5. What is the origin of the term “quart”?
The word “quart” comes from the Latin word Quartus, meaning a fourth, and the later French word Quarte, which refers to a 1/4 portion. In liquid measurements, a quart represents 1/4 of a gallon.
6. How are wet and dry quarts different?
Wet and dry quarts are different because wet and dry ingredients have different densities and need to be measured by volume. Liquid is less dense than solid, so it takes up more space. This is why a liquid quart contains 32 oz, while a dry quart has 37.23 oz.