The imperial cup is a unit of volume that was historically used in the United Kingdom and other countries that followed the imperial measurement system. One imperial cup is equal to 284.131 milliliters, making it slightly larger than the US cup, which holds about 236.588 milliliters. While not as widely used today due to the UK's adoption of the metric system, the imperial cup still appears in older recipes, cookbooks, and household measurements.
It was designed to be a convenient mid-range measure—larger than a tablespoon but smaller than a pint. In many traditional British kitchens, the cup was used for dry and liquid ingredients, often measured with simple household items or standard measuring cups that followed imperial standards.
Uses: The imperial cup is most commonly seen in classic British recipes and cookbooks written before metrication. It measured ingredients like flour, sugar, milk, and oil in home and professional kitchens. Even today, you may find imperial cup references in family recipes passed down over generations or in online conversions of older dishes.
Though the UK now uses grams and milliliters for most cooking and product packaging, the imperial cup still holds relevance for those recreating traditional British meals or converting recipes that rely on imperial units. It also occasionally appears on measuring cups that include metric and imperial markings, helping home cooks bridge the gap between old and new systems.
A fluid ounce (US) is a unit of volume used to measure liquids in the U.S. customary system. It's abbreviated as fl oz and is commonly seen in cooking, nutrition labeling, and liquid packaging. One US fluid ounce is defined as 1/128 of a US gallon, which equals exactly 29.5735 milliliters.
Despite the term "ounce" also being used for weight, a fluid ounce specifically measures liquid volume. It's important to distinguish the two, especially in recipes or products where both liquid and solid measurements appear. The US fluid ounce is a standard unit across many industries, from beverages and sauces to cleaning products and personal care items,
Uses: The fluid ounce is widely used in everyday life throughout the United States. In the kitchen, it shows up in recipes for measuring water, milk, oil, and other liquids. You'll also find it on nutrition labels, drink containers, and liquid medicine bottles. Most bottled drinks sold in the U.S., from soda cans to sports drinks, are labeled in fluid ounces.
Outside the kitchen, fluid ounces are also used to measure everyday products like shampoo, lotion, and household cleaners. Packaging labels often list fluid ounces to help shoppers gauge how much liquid is inside each bottle. In pharmacies, you may still see fluid ounces on medication packaging, though many prescriptions now use milliliters for greater accuracy and consistency.
1 cup (imp) = 9.607622 fl oz
Let’s say you want to convert 100 cup (imp) to fl oz.
Using the formula:
100 × 9.607622 = 960.762 fl oz
So, 100 cup (imp) is approximately 960.762 fl oz.
| Cup (Imperial) (cup (imp)) | Fluid Ounce (US) (fl oz) |
|---|---|
| 1 cup (imp) | 9.608 fl oz |
| 2 cup (imp) | 19.215 fl oz |
| 3 cup (imp) | 28.823 fl oz |
| 4 cup (imp) | 38.43 fl oz |
| 5 cup (imp) | 48.038 fl oz |
| 6 cup (imp) | 57.646 fl oz |
| 7 cup (imp) | 67.253 fl oz |
| 8 cup (imp) | 76.861 fl oz |
| 9 cup (imp) | 86.469 fl oz |
| 10 cup (imp) | 96.076 fl oz |
| 11 cup (imp) | 105.684 fl oz |
| 12 cup (imp) | 115.291 fl oz |
| 13 cup (imp) | 124.899 fl oz |
| 14 cup (imp) | 134.507 fl oz |
| 15 cup (imp) | 144.114 fl oz |