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.
A liter is a metric unit of volume used around the world to measure liquids and other fluid substances. It's spelled liter in American English (and litre in British English), and is abbreviated as L or l. One liter is equal to 1,000 milliliters or 0.26417 US gallons, making it a practical size for measuring both household and commercial quantities.
As the base unit of volume in the metric system, the liter is widely used in cooking, grocery labeling, beverages, scientific measurements, and industrial applications. From water bottles and milk cartons to chemical solutions and fuel containers, the liter provides a universal standard that's easy to work with and convert.
Uses: The liter is one of the most widely used volume units globally. In daily life, it's found on drink labels, cleaning products, and food packaging. Everyday items like juice, milk, and bottled water are often sold in whole or fractional liters, making it easy for consumers to understand quantity at a glance.
The liter is used in the kitchen to measure liquids in recipes or for serving sizes. In healthcare, the liter is used for preparing IV fluids, running lab tests, and mixing medications. It’s also used in the auto industry to measure things like engine oil and fuel efficiency. Because it’s easy to understand and widely accepted, the liter continues to be a go-to unit across many areas of daily life.
1 fl oz (imp) = 0.028413 L
Let’s say you want to convert 100 fl oz (imp) to L.
Using the formula:
100 × 0.028413 = 2.841 L
So, 100 fl oz (imp) is approximately 2.841 L.
| Fluid Ounce (Imperial) (fl oz (imp)) | Liter (L) |
|---|---|
| 1 fl oz (imp) | 0.028 L |
| 2 fl oz (imp) | 0.057 L |
| 3 fl oz (imp) | 0.085 L |
| 4 fl oz (imp) | 0.114 L |
| 5 fl oz (imp) | 0.142 L |
| 6 fl oz (imp) | 0.17 L |
| 7 fl oz (imp) | 0.199 L |
| 8 fl oz (imp) | 0.227 L |
| 9 fl oz (imp) | 0.256 L |
| 10 fl oz (imp) | 0.284 L |
| 11 fl oz (imp) | 0.313 L |
| 12 fl oz (imp) | 0.341 L |
| 13 fl oz (imp) | 0.369 L |
| 14 fl oz (imp) | 0.398 L |
| 15 fl oz (imp) | 0.426 L |