Teaspoons to Milliliters
Convert teaspoons (tsp) to milliliters (mL). 1 tsp = 4.92892 mL (and 1 mL = 0.2028842 tsp). It all runs locally in your browser.
Teaspoons to Milliliters table
| Teaspoons | Milliliters |
|---|---|
| 0.5 tsp | 2.46446 mL |
| 1 tsp | 4.92892 mL |
| 2 tsp | 9.85784 mL |
| 3 tsp | 14.78676 mL |
| 5 tsp | 24.6446 mL |
| 10 tsp | 49.2892 mL |
| 25 tsp | 123.223 mL |
| 50 tsp | 246.446 mL |
| 100 tsp | 492.892 mL |
Where this conversion shows up
Cooking and medicine dosing. A US teaspoon is a defined volume, not whatever spoon is in the drawer, and liquid medicine instructions increasingly give both units for exactly that reason.
Worked example
1 tsp is 4.93 mL, which is why medicine syringes are marked at 5 mL and a dose of "one teaspoon" is dispensed as 5 mL. Three teaspoons make a tablespoon: 14.79 mL.
Rounding and precision
Treat 1 tsp as 5 mL for cooking and dosing — the 0.07 mL difference is far smaller than the error in levelling a spoon. Do not use cutlery for medicine; a kitchen teaspoon can hold anywhere from 3 to 7 mL.
How to convert
To convert teaspoons to milliliters, multiply by 4.92892. Need other units? Use the full Unit Converter.
FAQ
How many milliliters in a teaspoon?
1 teaspoon equals 4.92892 milliliters (mL).
How do I convert teaspoons to milliliters?
Multiply the teaspoons value by 4.92892. For example, 5 tsp = 24.6446 mL.
Is a teaspoon 5ml?
Almost. A US teaspoon is 4.93 mL, and medical dosing rounds it to 5 mL. The UK metric teaspoon is defined as exactly 5 mL.
How many teaspoons in a tablespoon?
Three, in both the US and UK. That makes a tablespoon 14.79 mL in US measure and 15 mL in metric.