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 teaspoon (US) is a unit of volume measurement commonly used in American kitchens and food labeling. It is part of the US customary system and is typically abbreviated as "tsp." One US teaspoon is defined as exactly 4.92892 milliliters. It's also equivalent to one-third of a US tablespoon and one forty-eighth of a US cup.
This unit is frequently seen in recipes for small quantities of ingredients like salt, baking powder, or vanilla extract. It's also a common part of household measuring spoon sets, which usually include ¼, ½, and 1 teaspoon sizes.
Uses: The US teaspoon is widely used in both culinary and non-culinary contexts across the United States. The US teaspoon is a commonly used unit in everyday cooking, especially in baking, where accurate measurements of ingredients like spices, extracts, and baking powder are key to getting consistent results. Outside the kitchen, this small but essential unit is frequently used in healthcare as a standard measure for liquid medications, particularly when dosing for children. While medical professionals usually recommend milliliters for precision, many over-the-counter medicines in the US still refer to teaspoons as a practical reference.
1 fl oz (imp) = 5.764569 tsp
Let’s say you want to convert 100 fl oz (imp) to tsp.
Using the formula:
100 × 5.764569 = 576.457 tsp
So, 100 fl oz (imp) is approximately 576.457 tsp.
| Fluid Ounce (Imperial) (fl oz (imp)) | Teaspoon (US) (tsp) |
|---|---|
| 1 fl oz (imp) | 5.765 tsp |
| 2 fl oz (imp) | 11.529 tsp |
| 3 fl oz (imp) | 17.294 tsp |
| 4 fl oz (imp) | 23.058 tsp |
| 5 fl oz (imp) | 28.823 tsp |
| 6 fl oz (imp) | 34.587 tsp |
| 7 fl oz (imp) | 40.352 tsp |
| 8 fl oz (imp) | 46.117 tsp |
| 9 fl oz (imp) | 51.881 tsp |
| 10 fl oz (imp) | 57.646 tsp |
| 11 fl oz (imp) | 63.41 tsp |
| 12 fl oz (imp) | 69.175 tsp |
| 13 fl oz (imp) | 74.939 tsp |
| 14 fl oz (imp) | 80.704 tsp |
| 15 fl oz (imp) | 86.469 tsp |