Quarts To Ounces Conversion | How Many Ounces In A Quart?

Author: Avleen Barry - MA

Feb 27, 2023 6:01 PM

With the quart to ounce converter, you can quickly convert quart to oz. You can easily switch between both volume units with just a simple click. This article will provide more info about quart to oz conversion. 

What is an ounce (oz)? 

The ounce, or avoirdupois ounce, is a unit for measuring weight in the US customary and British imperial systems of measurement, and one ounce is defined as one-sixteenth (1/16) of a pound (avoirdupois) or 28.35 grams. The ounce can be abbreviated as oz. 

Where is an ounce used?

The unit is mainly used in the United States to label foods, postal items, etc., but it is sometimes also used in some other English-speaking countries. 

Is ounce different from fluid ounce and troy ounce?

The ounce, avoirdupois ounce, or common ounce, is a mass unit which shouldn’t be confused with the fluid ounce which is a liquid volume unit, or the troy ounce which is used to measure the weight of precious metals like gold and silver. One troy ounce is one twelfth troy pound or 31.1034768 g, while one common ounce equals exactly 28.349523125 g.

What is a quart (qt)? Is the quart widely used around the world?

The quart is a unit of volume. In the US customary system, there are two types of quarts: liquid quart and dry quart, while in the British imperial system, there is only one quart. The values of these quarts are a bit different. One liquid quart is equal to 1/4 liquid gallons or 0.946352946 liters while one dry quart is equivalent to 1/4 dry gallons or 1.101220942715 liters. One imperial quart is a bit bigger; there are 1/4 imperial gallons or 1.1365225 liters in an imperial quart. The quart can be abbreviated as qt. Like ounce, the quart is commonly used in the USA and some other English-speaking countries. 

Where do the words ounce and quart come from?

Etymologically, the word ounce originates from the Latin word uncia, which means one twelfth because in the ancient Latin, there were 12 ounces in one Latin pound. The unit gets its abbreviation from the Italian word onzo, the Italian word for ounce. 

In terms of etymology, the word quart derives from the Latin word quartus, which means a quarter. 

How many ounces are in a quart?

The answer depends on the material in the measurement. In a quart of water, there is 33.38 oz, while in a quart of milk, there is 34.38 oz.

How to convert Quarts to Ounces? 

The free converters on Calculatorful can help you with that conversion. Simply, you only need to:

  1. Identify the value in quarts

  2. Input the value in the quart field

  3. Click “Convert”

  4. Get your result

If you want to challenge yourself with more challenging calculation, you can do a manual conversion which involves several parameters. First of all, the quart is a unit of volume while the ounce is a unit of mass, so the conversion from quarts to ounces needs to take into account the intensity of the material. 

To convert quarts to ounces, you multiply the value in quarts by the conversion factor and the density of the material as shown in the formula:

ounces = quarts × 33.381618 × material density

For example, if you want to convert 2 quarts of water into ounces, and you know the water density is 1 g/mL, you multiply 2 by 33.381618 and 1. That is 2 x 33.381618 x 1 = 66.763235616155 oz.

Quart to Ounce Conversion Table 

Volume in Quarts:

Weight in Ounces of:



Olive Oil

All Purpose Flour


1/8 qt

4.1727 oz

4.2979 oz

3.8305 oz

2.2074 oz

3.5274 oz

1/4 qt

8.3454 oz

8.5958 oz

7.6611 oz

4.4147 oz

7.0548 oz

1/3 qt

11.13 oz

11.46 oz

10.2148 oz

5.8863 oz

9.4064 oz

1/2 qt

16.69 oz

17.19 oz

15.3222 oz

8.8294 oz

14.11 oz

2/3 qt

22.25 oz

22.92 oz

20.4296 oz

11.77 oz

18.81 oz

3/4 qt

25.04 oz

25.79 oz

22.9832 oz

13.24 oz

21.16 oz

1 qt

33.38 oz

34.38 oz

30.6443 oz

17.66 oz

28.22 oz

Related weight and volume converters: Grams To Cups | Cups to Grams | Grams To Fluid Ounces | Quarts To Gallons | Liters To Fluid Ounces


How many quarts in an oz?

It depends on the density of the material. In 1 oz of all-purpose flour, there is 0.0566 quart, but in 1 oz of sugar, there is 0.035437 qt.

How to convert 2 quarts of milk to ounces?

First of all, you need to identify the density of milk, which is 1.025. Then you multiply 2 by 1.03 and 33.381618. The result is 68.7661 oz.

Is one ounce of gold different from one ounce of flour?

Flour is measured in avoirdupois ounces so 1 oz of flour is 28.349523125 g while gold is measured in 'troy ounces', so 1 oz of gold is 31.1034768 g


Here, Calculatorful provides you with a user-friendly quart to oz conversion tool, which is very straightforward and quick to use. All you need to do is, enter the value in quart which will convert quart to ounces.




Provide quart (qt) number to convert to fluid ounce (fl oz).



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