The imperial fluid ounce is a unit of volume from the imperial measurement system, traditionally used in the United Kingdom and other Commonwealth countries. One imperial fluid ounce is equal to 28.4131 milliliters, which makes it slightly larger than the US fluid ounce (approximately 29.57 mL in the US system). It's commonly abbreviated as fl oz and was widely used for measuring liquids in recipes, packaging, and day-to-day household tasks.
Uses: The imperial fluid ounce was once a standard unit in British kitchens, used to measure ingredients such as milk, oil, and other cooking liquids. While most modern recipes in the UK now use milliliters or grams, many older or traditional recipes still list quantities in fluid ounces. This makes the unit especially relevant for those cooking from classic British cookbooks or following long-standing family recipes.
The imperial fluid ounce still appears on many UK labels, especially for drinks, personal care products, and older medicinal packaging. Whether you're following a traditional recipe or measuring from labeled packaging, knowing how this unit works helps you convert accurately and maintain consistency.
The cup (US) is a standard unit of volume used in American cooking and baking. It's part of the U.S. customary system and is commonly abbreviated as cup or sometimes c in recipes. One US cup equals exactly 236.588 milliliters, and it's defined as 1/16 of a US gallon or 8 US fluid ounces.
In American kitchens, a cup is one of the foundational units in recipe measurement. It's used for both dry and liquid ingredients, making it a flexible and practical choice for home cooks. Measuring cups—available in sets ranging from ¼ cup to 1 cup—are essential tools in households across the country.
Uses: The US cup is widely used in recipes for measuring ingredients like flour, sugar, milk, oil, and grains. It provides a simple and consistent way to portion both dry and wet ingredients, which is especially important in baking where ratios must be precise.
You'll also find the cup used in nutrition guides and food labels, particularly when describing serving sizes. In everyday cooking, it's a go-to unit that makes scaling recipes up or down much easier. Whether you're following a recipe from a cookbook, a food blog, or a product package, the US cup is likely to be one of the most frequently referenced measurements.
1 fl oz (imp) = 0.120095 cup
Let’s say you want to convert 100 fl oz (imp) to cup.
Using the formula:
100 × 0.120095 = 12.01 cup
So, 100 fl oz (imp) is approximately 12.01 cup.
| Fluid Ounce (Imperial) (fl oz (imp)) | Cup (US) (cup) |
|---|---|
| 1 fl oz (imp) | 0.12 cup |
| 2 fl oz (imp) | 0.24 cup |
| 3 fl oz (imp) | 0.36 cup |
| 4 fl oz (imp) | 0.48 cup |
| 5 fl oz (imp) | 0.6 cup |
| 6 fl oz (imp) | 0.721 cup |
| 7 fl oz (imp) | 0.841 cup |
| 8 fl oz (imp) | 0.961 cup |
| 9 fl oz (imp) | 1.081 cup |
| 10 fl oz (imp) | 1.201 cup |
| 11 fl oz (imp) | 1.321 cup |
| 12 fl oz (imp) | 1.441 cup |
| 13 fl oz (imp) | 1.561 cup |
| 14 fl oz (imp) | 1.681 cup |
| 15 fl oz (imp) | 1.801 cup |