The imperial teaspoon is a unit of volume used primarily in the United Kingdom and other countries that once followed the imperial measurement system. It's slightly smaller than the US teaspoon, with one imperial teaspoon equal to 4.7355 milliliters. This unit is abbreviated as tsp and has historically appeared in older British cookbooks and kitchenware.
While the imperial system has been largely replaced by the metric system in the UK, many traditional recipes and household items still reference the imperial teaspoon. It's part of a broader set of imperial volume measurements, including tablespoons, fluid ounces, and pints.
Uses: The imperial teaspoon was once a standard unit in British kitchens, used to measure ingredients like sugar, baking powder, and liquid extracts. Though the UK officially uses the metric system today, imperial units still appear in everyday cooking, particularly in family recipes passed down through generations.
You may also see the imperial teaspoon referenced in medication dosages or on packaging in regions that retain imperial labeling. While modern measuring tools often default to metric or US volumes, the imperial teaspoon remains relevant for those following traditional British cooking or converting older recipes accurately.
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 tsp (imp) = 1.200951 tsp
Let’s say you want to convert 100 tsp (imp) to tsp.
Using the formula:
100 × 1.200951 = 120.095 tsp
So, 100 tsp (imp) is approximately 120.095 tsp.
| Teaspoon (Imperial) (tsp (imp)) | Teaspoon (US) (tsp) |
|---|---|
| 1 tsp (imp) | 1.201 tsp |
| 2 tsp (imp) | 2.402 tsp |
| 3 tsp (imp) | 3.603 tsp |
| 4 tsp (imp) | 4.804 tsp |
| 5 tsp (imp) | 6.005 tsp |
| 6 tsp (imp) | 7.206 tsp |
| 7 tsp (imp) | 8.407 tsp |
| 8 tsp (imp) | 9.608 tsp |
| 9 tsp (imp) | 10.809 tsp |
| 10 tsp (imp) | 12.01 tsp |
| 11 tsp (imp) | 13.21 tsp |
| 12 tsp (imp) | 14.411 tsp |
| 13 tsp (imp) | 15.612 tsp |
| 14 tsp (imp) | 16.813 tsp |
| 15 tsp (imp) | 18.014 tsp |