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.
The imperial gallon is a unit of volume used in the imperial measurement system, and it is historically common in the United Kingdom and several other countries. One imperial gallon is equal to 4.54609 liters, which makes it significantly larger than the US gallon (approximately 3.785 liters). It is abbreviated as gal and traditionally used for measuring liquids in larger quantities.
In the imperial system, a gallon is made up of four quarts, eight pints, or 160 imperial fluid ounces. Though the UK has officially adopted the metric system, the imperial gallon is still recognized in specific contexts and remains part of British measurement history. It's most commonly associated with fuel pricing and older food or drink packaging.
Uses: The imperial gallon is most commonly seen today at fuel stations in the UK, where petrol and diesel are still sold by the gallon for pricing comparisons, even though the actual quantity delivered is measured in liters. Historically, the gallon was used for everything from milk deliveries to beer and cider sales.
While modern recipes and packaging have largely shifted to liters and milliliters, the imperial gallon occasionally appears in traditional instructions or product specs, especially for bulk liquids. For those referencing older materials or converting classic measurements, the imperial gallon remains a useful and historically significant unit.
1 tsp = 0.001084 gal (imp)
Let’s say you want to convert 100 tsp to gal (imp).
Using the formula:
100 × 0.001084 = 0.108 gal (imp)
So, 100 tsp is approximately 0.108 gal (imp).
| Teaspoon (US) (tsp) | Gallon (Imperial) (gal (imp)) |
|---|---|
| 1 tsp | 0.001 gal (imp) |
| 2 tsp | 0.002 gal (imp) |
| 3 tsp | 0.003 gal (imp) |
| 4 tsp | 0.004 gal (imp) |
| 5 tsp | 0.005 gal (imp) |
| 6 tsp | 0.007 gal (imp) |
| 7 tsp | 0.008 gal (imp) |
| 8 tsp | 0.009 gal (imp) |
| 9 tsp | 0.01 gal (imp) |
| 10 tsp | 0.011 gal (imp) |
| 11 tsp | 0.012 gal (imp) |
| 12 tsp | 0.013 gal (imp) |
| 13 tsp | 0.014 gal (imp) |
| 14 tsp | 0.015 gal (imp) |
| 15 tsp | 0.016 gal (imp) |