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.
A milliliter is a metric unit of volume used around the world for measuring small amounts of liquid. It's abbreviated as mL and is defined as one-thousandth of a liter—making it ideal for precise, everyday measurements. One milliliter is equal to 1 cubic centimeter (cm³) and roughly 0.034 fluid ounces (US).
Because of its precision and simplicity, the milliliter is a standard in science, medicine, cooking, and packaging. Whether you're reading a nutrition label, following a recipe, or measuring out a medication dose, the milliliter is a practical and widely accepted unit in both personal and professional settings.
Uses: The milliliter is used globally in a wide range of applications. In the kitchen, it helps measure small liquid quantities like vanilla extract, lemon juice, or oil. On food packaging, beverages, and household products, you'll often see volumes listed in milliliters to indicate serving sizes or total content.
In healthcare, the milliliter is critical for accurately dosing liquid medications, especially in syringes and measuring cups. The milliliter is often seen in labs and industries where accurate volume is expected. It’s also used on packaging, recipe cards, and medicine labels to keep measurements clear and consistent in everyday use.
1 tsp = 4.92892 mL
Let’s say you want to convert 3.5 tsp to mL.
Using the formula:
3.5 × 4.92892 = 17.251 mL
So, 3.5 tsp is approximately 17.251 mL.
| Teaspoon (US) (tsp) | Milliliter (mL) |
|---|---|
| 1 tsp | 4.929 mL |
| 2 tsp | 9.858 mL |
| 3 tsp | 14.787 mL |
| 4 tsp | 19.716 mL |
| 5 tsp | 24.645 mL |
| 6 tsp | 29.574 mL |
| 7 tsp | 34.502 mL |
| 8 tsp | 39.431 mL |
| 9 tsp | 44.36 mL |
| 10 tsp | 49.289 mL |
| 11 tsp | 54.218 mL |
| 12 tsp | 59.147 mL |
| 13 tsp | 64.076 mL |
| 14 tsp | 69.005 mL |
| 15 tsp | 73.934 mL |