Convert Imperial Quart to US Fluid Ounce
Convert imperial quarts to us fluid ounces instantly. 1 imperial quart = 38.4303976162 us fluid ounce — use the live calculator, the exact formula, a conversion table and worked examples. Also check the US Fluid Ounce to Imperial Quart converter for the reverse conversion.
Units explained
Imperial Quart
An imperial quart is one quarter of an imperial gallon (1.13652 L).
A subdivision of the 1824 imperial gallon.
Used in the UK and Commonwealth.
UK, 1824.
US Fluid Ounce
A US fluid ounce is 1/128 of a US gallon (29.5735 mL).
Derived from the gallon subdivision; distinct from the slightly smaller UK fluid ounce.
Standard for US beverage and nutrition labeling.
English customary; US since 1824.
Imperial Quart to US Fluid Ounce conversion formula
The relationship between imperial quarts and us fluid ounces:
To convert imperial quarts to us fluid ounces, multiply the value in imperial quarts by 38.4303976162. To reverse, multiply us fluid ounces by 0.0260210683.
How to use this converter
Type a value into the calculator. The result in us 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 US Fluid Ounce to Imperial Quart converter for the reverse direction.
Step-by-step: convert imperial quarts to us fluid ounces
- Write down the value in imperial quarts (qt).
- Multiply that value by the factor 38.4303976162.
- The product is the equivalent value in us fluid ounces (fl oz).
- To reverse, multiply the us fluid ounce value by 0.0260210683.
Worked examples
Example 1 — Convert 1 qt to fl oz:
1 × 38.4303976162 = 38.4303976162 fl oz
Example 2 — Convert 100 qt to fl oz:
100 × 38.4303976162 = 3843.0397616155 fl oz
Real-world example — Adjacent metric sub-units
One imperial quart equals 1,000 us fluid ounces. Engineers move between these scales constantly: PCB feature sizes in the larger unit, wire-bond diameters in the smaller.
1 qt × 38.4303976162 = 38.4303976162 fl oz
Real-world example — Adjacent small-scale precision
One imperial quart equals 1,000 us fluid ounces — the standard sub-millimeter precision conversion that materials engineers use whenever they switch between bulk material thickness specs (larger unit) and surface-finish characteristics (smaller unit).
1 qt × 38.4303976162 = 38.4303976162 fl oz
Imperial Quart to US Fluid Ounce conversion table
Standard reference values for converting imperial quarts to us fluid ounces:
| Imperial Quart [qt] | US Fluid Ounce [fl oz] |
|---|---|
| 0.01 | 0.3843039762 |
| 0.1 | 3.8430397616 |
| 1 | 38.4303976162 |
| 2 | 76.8607952323 |
| 3 | 115.2911928485 |
| 4 | 153.7215904646 |
| 5 | 192.1519880808 |
| 10 | 384.3039761616 |
| 20 | 768.6079523231 |
| 30 | 1152.9119284847 |
| 40 | 1537.2159046462 |
| 50 | 1921.5198808078 |
| 100 | 3843.0397616155 |
| 500 | 19215.1988080777 |
| 1000 | 38430.3976161554 |
Frequently asked questions
How many us fluid ounces is 1 imperial quart?
How do I convert imperial quarts to us fluid ounces?
How do I convert us fluid ounces back to imperial quarts?
How many us fluid ounces is 100 imperial quarts?
Popular volume unit conversions
Convert Imperial Quart to other volume units
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Metric / SI (8 units)
US Customary (Liquid) (8 units)
Imperial (UK) (3 units)
Cubic (length-derived) (3 units)
Cooking / Culinary (3 units)
Sources & references
Conversion factor (1 qt = 38.4303976162 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 Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.