Convert Teaspoon to Millilitre
Instantly convert Teaspoon (tsp) to Millilitre (mL). Free and accurate.
About This Conversion
What is a Teaspoon to Millilitre conversion?
One teaspoon (tsp) is equal to 4.92892159 millilitre (mL). This relationship is fixed by international measurement standards and does not change. To convert any number of teaspoon to millilitre, multiply your value by 4.92892159; to go the other way, divide by 4.92892159.
How to convert Teaspoon to Millilitre
The conversion formula is: 1 tsp = 4.92892159 mL. Enter any value into the converter above and the result updates instantly. The formula is also shown alongside the answer so you can check the working or use it in your own calculations.
Where is this conversion used?
Volume conversions appear in cooking, chemistry, medicine, fuel measurement, and plumbing. The metric system uses litres and millilitres; the imperial system uses pints, gallons, and fluid ounces — and US and UK gallons differ from one another. Pharmacists, bartenders, chemists, plumbers, and fuel engineers routinely convert volumes. Note that a US gallon (3.785 L) and a UK/Imperial gallon (4.546 L) are not the same — always confirm which gallon is intended.
Helpful tip
A standard wine bottle holds 750 mL (0.75 L). A US pint of beer is 473 mL, while a UK pint is 568 mL — nearly 20% larger.
Formula
1 tsp = 4.92892159 mL
tsp to mL Conversion Table
| tsp | mL |
|---|---|
| 0.1 tsp | 0.4928921594 mL |
| 0.5 tsp | 2.4644608 mL |
| 1 tsp | 4.92892159 mL |
| 2 tsp | 9.85784319 mL |
| 5 tsp | 24.64460797 mL |
| 10 tsp | 49.28921594 mL |
| 20 tsp | 98.57843188 mL |
| 25 tsp | 123.22303984 mL |
| 50 tsp | 246.44607969 mL |
| 100 tsp | 492.89215938 mL |
| 250 tsp | 1,232.230398 mL |
| 500 tsp | 2,464.460797 mL |
| 1000 tsp | 4,928.921594 mL |