There are 32 fluid ounces in a US quart. Use this free converter to change quarts to ounces, and ounces to quarts. Type an amount in the Quarts box and the fluid ounces appear as you type (1 quart is 32 fl oz, 2 quarts is 64 fl oz and 4 quarts is 128 fl oz). Type in the Fluid ounces box to go the other way: 32 fl oz is 1 quart and 64 fl oz is 2 quarts. Pick a US or UK quart, because a UK (Imperial) quart is 40 UK fluid ounces. The answer also shows pints, cups and liters, and you can type a fraction such as 1/2 or 1 1/2. Pick how many decimals to round to and copy a link to your conversion. Tables list quarts in ounces, ounces in quarts, the US liquid measures from a cup to a gallon, and the US, UK and dry quarts side by side. It is free and instant, and your numbers stay in your browser.
How many ounces are in a quart
There are 32 fluid ounces in a US quart. A US liquid quart is exactly 32 US fluid ounces, because a quart is 1/4 of a US gallon and a gallon is 128 fluid ounces. In other units, a quart is 4 cups, 2 pints, or 946.3529 milliliters (0.9464 liters).
How to convert quarts to ounces
Multiply the quarts by 32.
fluid ounces = quarts × 32For 1 quart: 1 × 32 = 32 fl oz. For 2 quarts: 2 × 32 = 64 fl oz. For 3 quarts: 3 × 32 = 96 fl oz. For 4 quarts: 4 × 32 = 128 fl oz, which is one gallon. For 1.5 quarts: 1.5 × 32 = 48 fl oz.
How to convert ounces to quarts
Divide the fluid ounces by 32: quarts = fluid ounces ÷ 32. For 16 fl oz: 16 ÷ 32 = 0.5 quart. For 32 fl oz: 32 ÷ 32 = 1 quart. For 48 fl oz: 48 ÷ 32 = 1.5 quarts. For 64 fl oz: 64 ÷ 32 = 2 quarts. One fluid ounce is 1/32 of a quart, which is 0.03125.
Cups, pints and gallons
A cup is 8 fluid ounces, a pint is 16 (2 cups), a quart is 32 (2 pints), a half gallon is 64 and a gallon is 128 (4 quarts). So a quart is 4 cups, and a 32 oz bottle of a liquid is a quart. The tables above list them.
UK (Imperial) quarts
A UK quart is bigger than a US quart and is made of more ounces: 40 UK fluid ounces, which is 1,136.5225 ml. A UK fluid ounce is a little smaller than a US one (28.4131 ml against 29.5735 ml), so a UK quart is 38.4304 US fluid ounces. Use the UK button above the boxes for a British or Commonwealth source.
The US dry quart
The US also has a dry quart, used for dry goods such as berries. It is a volume of 1,101.2209 ml, which is 37.2367 US fluid ounces. It is not a weight, and it is bigger than a liquid quart. This page converts the liquid quart and the UK quart.
Fluid ounces or weight ounces?
A fluid ounce (fl oz) measures volume, and an ounce (oz) on a scale measures weight. For a quart of any liquid the volume is the same, 32 fluid ounces, but the weight is not. A quart of water weighs about 33.4 ounces, or 2.09 pounds (946 grams), counting 1 ml of water as 1 gram. Oil, milk and honey weigh different amounts. For fluid ounces in milliliters use the Oz to ML converter.
Other volume units
For tablespoons, teaspoons, cups, liters and gallons, use the Volume Converter or Tablespoons to Cups.
Spelling
You may see quart, qt or qts, and ounce, oz or fl oz. This page works for all of them, and for "2qt" typed without a space.


