Teaspoons to ML Converter
Convert teaspoons (tsp) to milliliters (ml) instantly. Type a value — the result updates as you type, and the swap button converts the other way.
Teaspoons to ml formula
ml = tsp × 4.92892159375
1 teaspoon = 4.93 milliliters · 1 milliliter = 0.2029 teaspoons
To convert teaspoons to milliliters, multiply the value by 4.92892159375. For example, 1 tsp:
ml = 1 × 4.92892159375ml = 4.928922
So 1 tsp = 4.93 ml.
Mental math shortcut
Quick mental estimate: multiply by 5. For 1 tsp that gives about 5 ml — off by 0.0711 ml (1.4%). Use the exact formula when precision matters.
Teaspoons to ml conversion table
ml back to Teaspoons
The same values converted the other way, rounded for everyday use:
| Milliliters | Teaspoons |
|---|---|
| 0.6161 ml | 0.125 tsp |
| 1.23 ml | 0.2495 tsp |
| 2.46 ml | 0.4991 tsp |
| 3.7 ml | 0.7507 tsp |
| 4.93 ml | 1 tsp |
| 7.39 ml | 1.5 tsp |
| 9.86 ml | 2 tsp |
| 14.79 ml | 3 tsp |
About the units
Teaspoons (tsp)
A US teaspoon is 1/3 of a tablespoon, about 4.93 ml. Many countries round a teaspoon to 5 ml.
Milliliters (ml)
A milliliter is one thousandth of a liter, equal to one cubic centimeter. It is used for drinks, medicine doses and cooking.
Frequently asked questions
How many milliliters are in a teaspoon?
One teaspoon equals 4.93 milliliters.
What is 1 Teaspoons in ml?
1 tsp = 4.93 ml.
How do I convert ml back to Teaspoons?
Divide the milliliters by 4.92892159375. Or use the ML to Teaspoons converter.