Fluid Ounces to US Quarts Converter
fl oz → qt · 🧪 Volume
1 Fluid Ounces = 0.031249967 US Quarts
How to convert Fluid Ounces to US Quarts
To convert Fluid Ounces to US Quarts, multiply the value in Fluid Ounces by 0.031249967. For example, 5 fl oz = 0.15624983 qt.
Converting Fluid Ounces (fl oz) to US Quarts (qt) is a frequent need, and the exact relationship is 1 fl oz = 0.031249967 qt. Whether you're working on a project, checking a specification, or just curious, the calculator above gives you the answer instantly for any value you enter.
Volume conversions are essential in the kitchen, in science, and in any situation involving liquids or capacity. They're also one of the trickiest areas because US and UK (imperial) measurements share names but differ in size.
Understanding Fluid Ounces and US Quarts
A US gallon (3.785 liters) is noticeably smaller than a UK gallon (4.546 liters) — about 20% less. The same applies to pints, quarts, and fluid ounces. Cups, tablespoons, and teaspoons are the backbone of recipe measurement, while liters and milliliters dominate scientific and most international contexts. This US/UK split is the single biggest source of error in volume conversion.
How accurate is this conversion?
Volume conversions here use the internationally accepted definitions: the US gallon is exactly 3.785411784 liters and the imperial gallon is exactly 4.54609 liters. Always confirm which system a recipe or specification uses before converting.
All conversion factors on ClearUnits are based on internationally recognised standards (the International System of Units, SI, and official definitions). Factors are reviewed for accuracy and the calculator uses full-precision values, rounding only the displayed result.
Quick reference: common Fluid Ounces to US Quarts values
The most frequently searched conversions are 1 Fluid Ounces = 0.031249967 US Quarts, 5 Fluid Ounces = 0.15624983 US Quarts, 10 Fluid Ounces = 0.31249967 US Quarts, and 100 Fluid Ounces = 3.1249967 US Quarts. The full table further down covers every common value, and the calculator handles any number you need in between.
Pro tip: When following a recipe, check the source country first. A British recipe calling for a pint of liquid means 568 mL, while an American pint is only 473 mL — enough difference to affect the result of baking and sauces.
Fluid Ounces to US Quarts — Conversion Table
| Fluid Ounces (fl oz) | US Quarts (qt) |
|---|---|
| 0.1 fl oz | 0.0031249967 qt |
| 0.25 fl oz | 0.0078124917 qt |
| 0.5 fl oz | 0.015624983 qt |
| 1 fl oz | 0.031249967 qt |
| 2 fl oz | 0.062499934 qt |
| 5 fl oz | 0.15624983 qt |
| 10 fl oz | 0.31249967 qt |
| 25 fl oz | 0.78124917 qt |
| 50 fl oz | 1.5624983 qt |
| 100 fl oz | 3.1249967 qt |
| 250 fl oz | 7.8124917 qt |
| 500 fl oz | 15.624983 qt |
| 1000 fl oz | 31.249967 qt |