How Many Ounces Are In A Quart? Your Questions Answered

If you cook daily, you will be well aware that it can often be more complicated than it seems. Cooking is a science and getting a measurement wrong can lead to a recipe failure. 

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If you have been attempting to convert imperial measures to metric measurements, we have the solution. In particular, how many oz in a quart of liquid. One quart is the same as 32 fluid ounces of liquid. 

By the end of this article, we guarantee you will be able to confidently answer the question, “How many ounces in a quart?”

But first, let’s take a look at the different types of measurements. An imperial fluid ounce is a volume unit in the Imperial system most often used in the United States. When it comes to measuring liquids or dry goods, you can use ounces for both.

An imperial quart is a unit of measurement that is also used in the Imperial system, and you can use it to measure both a liquid ounce and dry goods.

Now, this may sound unclear, and we don’t blame you if you’re a bit confused. So let’s figure out the different types of measuring unit. 

First, you have the international metric system. This measurement is a standard system that is used across the world. Next, there is an Imperial system and finally, the United States system.

The United States set out with the intention that its measuring technique should be referred to as “the U.S. system” since it was seen as an American invention when other countries were still using the Imperial system. 

The U.S system had one set of units for measuring fluids and another set for dry ingredients.

The United Kingdom uses the metric system which is known as the British Imperial system. It is almost identical to the United States system, except for a few minor variations in numbers.

What exactly are ounces and quarts?

Fluid ounces should not be confused with weight-measuring ounces. When thinking about the weight or volume of liquid, you would measure in fluid ounces. You will find that this unit of measuring liquid is mostly used within the US. However, there are other countries around the world that still use the Imperial system.

Different volume measuring units are in use, each with its own set of characteristics. Cups and milliliters are the most often seen metric measurements in the kitchen.

Quarts, pints, and gallons are additional liquid measuring units used in Imperial and United States systems. In recipes, if you don’t know how to convert them, you could end up with some strange-tasting recipes.

Knowing that one-quart liquid equals one-quarter gallon can help you convert these measurements.

Because every ingredient has a unique volume to mass ratio, conversions that try to determine how much water or other fluid is present in different compounds may be incorrect. However, the same thing might happen with fluid ounces and dry quarts as it could with grams. So you remember it, we’ll repeat that: for the conversion to be successful, the converted item must have the same volume and mass as the object being converted.

It is a straightforward process to convert fluid ounces into U.S. quarts (liquid)

One fluid ounce is a unit of volume used to measure the volume of a liquid. When liquid mass equals liquid volume, some liquids, such as water and milk, have the same weight as one another.

In the Imperial system, one fluid ounce is equal to 28.4 milliliters (Metric system). Although there are 28.34 milliliters in an ounce, the United States system measures volume in fluid ounces (Metric system).

As you can see, the fluid ounce in the United States and imperial systems both contain somewhat more fluid than the imperial system. While this may seem to have little impact, it may significantly affect the final product’s appearance, texture, and taste when applied to recipes.

It’s important to understand that the conversion between liquid volume and weight works only if the component has an equal volume to the mass ratio in its composition.

A quart of liquids weighs about 32 ounces (U.S. system).

One fluid quart is equivalent to 33.31 fluid ounces (Imperial system)

But what about when we consider the humble milliliter? According to the United States, a liquid quart is equal to 946 milliliters, while an imperial liquid quart is comparable to 1136 milliliters.

In the United States, a quart (dry) equals 37.24 ounces of liquid (U.S. system)

In the United States, a dry quart is equivalent to about 38.76 fluid ounces (Imperial system)

There are a variety of different measuring units available.

We now know how many fluid ounces are in a quart, but there are still many other conversions to look to consider.

Learning how to do different conversions is a great skill to have. It will help you in the kitchen and can also help other aspects of life.

Pints and quarter-pints (cups) are the most common sizes.

We already know that one fluid quart is equal to 32 fluid ounces, so that’s not a problem. Remember that conversion, as it will help you later on.

Two pints make up a fluid quart.

If you want to know how many fluid ounces are in a single pint, divide 32 (fluid ounces) by two. 

Now, lets go back to the equation at the beginning of this section. We now know that 32 fl oz. is the same as one quart. And 32 fluid ounces is also equal to two pints. Therefore, half the amount of a pint is the exact same measurement as half the amount of fluid ounces.

To determine how many ounces are in a cup, all you have to do is multiply the number of cups contained within a pint by the number of ounces contained within a cup.

How Many Fluid Ounces in a Gallon?

An imperial gallon is equal to four quarts in volume. Although it probably makes sense to describe it as a fourth of a gallon being one quart. 

Here’s a fascinating fact. The term “quart” comes from the root of the word “quarte,” which originally meant a quarter of a gallon. You learn something new every day!

To get the number of fluid ounces contained in a quart, multiply the number of ounces contained in a quart (32) by four and then multiply the result by one. The answer will provide you with the quantity of fluid ounces contained inside a quart.

A gallon contains 128 fluid ounces (32 fluid ounces x 4)

In addition to utilizing previous conversions, you can now use these conversions to figure out how many pints and cups are equal to how many gallons.

Now that you know the formula, you can figure out how many gallons one quart of two pints of four pints of water is by multiplying two pints of water by four and dividing the result by two. As a result, you will get an answer of 8 gallons.

When you multiply four cups by four, you get sixteen cups equal to one gallon. Doing the same calculation using cups instead of pints yields the same answer.

If you’re still unsure how to convert measurements, take a look at our conversion chart.

Fluid OuncesQuarts


After reading this, you will never have to look for conversions on the internet again. You should now be able to convert from quarts to ounces to pounds to pints to gallons to measuring cup and even from ounces to cups!

The same is true for working out how to convert to cups. In this case, two pints of liquid is the same as four cups. When you double the four cups and double again, you end up with 16 cups, which is equivalent to one gallon of liquid.

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Cassie brings decades of experience to the Kitchen Community. She is a noted chef and avid gardener. Her new book "Healthy Eating Through the Garden" will be released shortly. When not writing or speaking about food and gardens Cassie can be found puttering around farmer's markets and greenhouses looking for the next great idea.
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