Convert Quart to Fluid Ounce (qtfl oz)

The US quart equals one quarter of a gallon and is common for milk, motor oil, and cooking stocks.

32
1 qt32 fl ozNIST · BIPM accuracy

Quart to Fluid Ounce Conversion Table

10 common values
QuartFluid Ounce
1 qt32 fl oz
2 qt64 fl oz
5 qt160 fl oz
10 qt320 fl oz
20 qt640 fl oz
50 qt1,600 fl oz
100 qt3,200 fl oz
200 qt6,400 fl oz
500 qt16,000 fl oz
1,000 qt32,000 fl oz

How to Convert Quart to Fluid Ounce Manually

Step by Step

Converting quarts to fluid ounces is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.

  1. 1
    Take your value in quarts
    Start with the number of quarts (qt) you want to convert.
  2. 2
    Multiply by 32
    The conversion factor from qt to fl oz is 32. Multiply your value by this number.
  3. 3
    Read the result in fluid ounces
    The result is your value in fluid ounces (fl oz).
Practical Examples
1 qt
equals
32 fl oz
5 qt
equals
160 fl oz
10 qt
equals
320 fl oz
25 qt
equals
800 fl oz
100 qt
equals
3,200 fl oz

Formula

Multiply the value in quarts by 32. For the reverse direction, multiply by 0.03125.

Forwardfl oz = qt × 32
Reverseqt = fl oz × 0.03125
Example: 10 qt × 32 = 320 fl oz

Tips

Use these in everyday conversions
  • 1 US quart = 2 US pints = 946 ml ≈ 1 L.
  • 1 UK quart = 2 UK pints = 1137 ml.
  • Quarts appear more often in the US than UK in everyday usage.

Common Mistakes

Avoid these
  • Treating US and UK quarts as equal — 20% off.
  • Using quarts outside US — most metric countries do not use them at all.
  • Confusing quart (volume) with quarter (mass unit in older UK contexts).

About Quart and Fluid Ounce

What is the Quart?

The US quart equals exactly one quarter of a US gallon (0.946352946 liters) and is a common kitchen and motor-oil volume in the United States. The word 'quart' derives from the Latin 'quartus' meaning fourth. Milk and motor oil are commonly sold in quart containers (a quart of motor oil is 32 fl oz), and large recipes call for quart-sized stockpots. The US quart is distinct from the slightly larger UK imperial quart (1.137 L). It relates to the gallon (4 qt = 1 gal), the pint (2 pt = 1 qt), the cup (4 cups = 1 qt), the fluid ounce (32 fl oz = 1 qt), and the liter (1 US qt ≈ 0.946 L). The quart is a useful intermediate volume between the cup (small recipe measurements) and the gallon (bulk liquids).

  • US cooking recipe quantities
  • US motor-oil container sizes (1 quart bottles)
  • Canning and preserving containers
Real-world examples

A US quart of motor oil is 946 ml. A "quart of milk" in the US ≈ 1 L. UK "quart" is rare today.

What is the Fluid Ounce?

The US fluid ounce equals exactly 29.5735295625 milliliters and is the standard small-volume unit for beverages, cocktails, personal-care products, and cooking in the United States. It is distinct from the (weight) ounce: 1 fluid ounce of water weighs about 1 ounce by weight at room temperature, but other liquids may weigh more or less. Soft-drink cans (12 fl oz), beer bottles (12 fl oz), shampoo bottles, and skin-cream tubs all label volume in fluid ounces. The US fluid ounce is slightly different from the UK imperial fluid ounce (28.4131 mL — about 4% smaller), reflecting the different gallon definitions. The US fl oz relates to the gallon (128 fl oz = 1 gal), the cup (8 fl oz = 1 cup), the tablespoon (2 tbsp = 1 fl oz), and the milliliter (1 fl oz ≈ 29.57 mL). Cocktail recipes universally use fluid ounces.

  • US beverage and soda can sizes (12 fl oz)
  • Cosmetic and personal-care product volumes
  • US fluid recipes and cocktail measures
Real-world examples

A US soda can is 12 fl oz (355 ml). A Starbucks Tall is 12 fl oz; Grande is 16; Venti is 20.

Learn About Both Units

🧪 Reference

What is the Quart?

Read the unit page →
🧪 Reference

What is the Fluid Ounce?

Read the unit page →

Quart to Fluid Ounce FAQ

5 questions
How many fluid ounces in a quart?
One quart equals 32 fluid ounces.
How do I convert quarts to fluid ounces?
Multiply the quart value by 32 to get the equivalent in fluid ounces.
What is 100 quarts in fluid ounces?
100 quarts equals 3,200 fluid ounces.
Is a quart bigger than a fluid ounce?
Yes. 1 quart equals 32 fluid ounces, so one quart is larger.
How to convert quarts to fluid ounces without a calculator?
Multiply by 32 for a quick estimate; use a calculator for precise results.

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