How To Convert US Ounce to Quart us
Formula: US quarts (qt) = US fluid ounces (fl oz) ÷ 32
Example: Convert 18 fl oz to qt. 18 ÷ 32 = 0.5625 qt.
To do it by hand, take your fluid ounce number and divide by 32.
This works because the US liquid quart is defined as exactly 32 US fluid ounces.
If you need fluid ounces again, multiply quarts by 32.
Quick Answer
1 US fluid ounce (fl oz) = 0.03125 US quart (qt)
- 8 fl oz = 0.25 qt
- 16 fl oz = 0.5 qt
- 32 fl oz = 1 qt
Conversion Formula
US quarts (qt) = US fluid ounces (fl oz) ÷ 32 US fluid ounces (fl oz) = US quarts (qt) × 32
This means quarts are a bigger unit than fluid ounces. One quart contains 32 equal fluid ounce parts.
So, when you convert from fl oz to qt, the number gets smaller because you are moving to a larger unit.
- Write down your value in US fluid ounces (fl oz).
- Divide that value by 32.
- The result is your value in US quarts (qt).
US ounce
A US ounce in this conversion means a US fluid ounce, a unit of volume. The symbol is fl oz.
It comes from older English volume systems that influenced early American measures. Today, it is standardized in the US customary system as 1/128 of a US gallon.
- Measuring water, milk, and juice in recipes
- Nutrition labels and drink serving sizes
- Mixing coffee, syrups, and concentrates
- Tracking liquid intake, like sports drinks
- Small bottle and cup volume measurements
US quart
A US quart is a US customary unit of volume equal to 32 US fluid ounces. The symbol is qt.
The word “quart” comes from “quarter,” meaning one quarter of a gallon. In the US liquid system, it is standardized as 1/4 of a US gallon.
- Measuring soups, stocks, and large recipe liquids
- Buying and storing milk and other drinks in larger amounts
- Mixing batches of beverages, like iced tea
- Estimating container size for coolers and pitchers
- Planning liquid needs for cooking and events
Is this Conversion of US Ounce To Quart us Accurate?
Yes. This conversion is exact in the US customary liquid system because 1 US quart is defined as 32 US fluid ounces. Our converter uses this fixed relationship, which is the same value used in standard references, education, and everyday US measuring tools. For how we apply and verify measurement standards, read our methodology on accuracy standards.
Real Life Examples
These examples show how fl oz to qt helps in daily cooking, planning, and measuring.
- Making a pitcher of lemonade: You have 48 fl oz of lemonade. 48 ÷ 32 = 1.5 qt, so it is one and a half quarts.
- Soup recipe scaling: A recipe needs 24 fl oz of broth. 24 ÷ 32 = 0.75 qt, which is three quarters of a quart.
- Half-quart target: You want 0.5 qt of iced tea. 0.5 × 32 = 16 fl oz, so measure 16 fl oz.
- Checking container capacity: A bottle holds 20 fl oz. 20 ÷ 32 = 0.625 qt, a little over half a quart.
- Meal prep liquids: You portion 12 fl oz of sauce. 12 ÷ 32 = 0.375 qt, just under 0.4 qt.
- Event drink planning: You have 128 fl oz total punch. 128 ÷ 32 = 4 qt, which is 4 quarts.
- Converting a 2-quart jug to ounces: A 2 qt jug holds 2 × 32 = 64 fl oz.
Quick Tips
- To go from fl oz to qt, divide by 32.
- To go from qt to fl oz, multiply by 32.
- 32 fl oz is always 1 qt, memorize this anchor point.
- 16 fl oz is 0.5 qt, 8 fl oz is 0.25 qt, 4 fl oz is 0.125 qt.
- If your answer seems bigger than the fl oz number, you likely multiplied instead of dividing.
- Use fractions when helpful, 24 fl oz is 24/32 qt, which is 3/4 qt.