Convert US Quart to Imperial Fluid Ounce
Convert us quarts to imperial fluid ounces instantly. 1 us quart = 33.3069673852 imperial fluid ounce — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Imperial Fluid Ounce to US Quart converter for the reverse conversion.
Units explained
US Quart
A US liquid quart is one quarter of a US gallon (0.946352946 L).
From the Latin quartus, a quarter of a gallon.
Used for milk, oil and household liquids in the US.
English customary.
Imperial Fluid Ounce
An imperial fluid ounce is 1/160 of an imperial gallon (28.4131 mL).
Defined so that ten fluid ounces make an imperial half-pint.
Used in UK and Commonwealth recipes and labels.
UK, 1824.
US Quart to Imperial Fluid Ounce conversion formula
The relationship between us quarts and imperial fluid ounces:
To convert us quarts to imperial fluid ounces, multiply the value in us quarts by 33.3069673852. To reverse, multiply imperial fluid ounces by 0.0300237481.
How to use this converter
Type a value into the calculator. The result in imperial fluid ounces updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Imperial Fluid Ounce to US Quart converter for the reverse direction.
Step-by-step: convert us quarts to imperial fluid ounces
- Write down the value in us quarts (qt).
- Multiply that value by the factor 33.3069673852.
- The product is the equivalent value in imperial fluid ounces (fl oz).
- To reverse, multiply the imperial fluid ounce value by 0.0300237481.
Worked examples
Example 1 — Convert 1 qt to fl oz:
1 × 33.3069673852 = 33.3069673852 fl oz
Example 2 — Convert 100 qt to fl oz:
100 × 33.3069673852 = 3330.696738516 fl oz
Real-world example — Paper and film thicknesses
At the thickness of office paper (roughly 3 us quarts), converting between sub-millimeter units is routine for packaging and printing buyers comparing quotes from metric and US suppliers.
3 qt × 33.3069673852 = 99.9209021555 fl oz
Real-world example — Plastic-film thickness alternates
A 150-us quart plastic film converts cleanly to imperial fluid ounces — useful for packaging buyers reconciling supplier datasheets across metric and US measurement systems.
150 qt × 33.3069673852 = 4996.0451077739 fl oz
Real-world example — Hair-width scale measurements
A 70-us quart measurement (about the diameter of a human hair) is the kind of value materials engineers regularly express in adjacent micro-scale units like imperial fluid ounces for direct comparison across supplier datasheets.
70 qt × 33.3069673852 = 2331.4877169612 fl oz
US Quart to Imperial Fluid Ounce conversion table
Standard reference values for converting us quarts to imperial fluid ounces:
| US Quart [qt] | Imperial Fluid Ounce [fl oz] |
|---|---|
| 0.01 | 0.3330696739 |
| 0.1 | 3.3306967385 |
| 1 | 33.3069673852 |
| 2 | 66.6139347703 |
| 3 | 99.9209021555 |
| 4 | 133.2278695406 |
| 5 | 166.5348369258 |
| 10 | 333.0696738516 |
| 20 | 666.1393477032 |
| 30 | 999.2090215548 |
| 40 | 1332.2786954064 |
| 50 | 1665.348369258 |
| 100 | 3330.696738516 |
| 500 | 16653.4836925798 |
| 1000 | 33306.9673851596 |
Frequently asked questions
How many imperial fluid ounces is 1 us quart?
How do I convert us quarts to imperial fluid ounces?
How do I convert imperial fluid ounces back to us quarts?
How many imperial fluid ounces is 100 us quarts?
Popular volume unit conversions
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Metric / SI (8 units)
US Customary (Liquid) (7 units)
Imperial (UK) (4 units)
Cubic (length-derived) (3 units)
Cooking / Culinary (3 units)
Sources & references
Conversion factor (1 qt = 33.3069673852 fl oz) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.