To convert milliliters to teaspoons, divide by 4.92892. So 5 ml = 1 teaspoon, 10 ml = 2 teaspoons, and 15 ml = 3 teaspoons (1 tablespoon). In medicine, 5 ml is officially defined as 1 teaspoon for dosing.
- Formula: tsp = ml ÷ 4.92892. Medical standard: 5 ml = 1 teaspoon exactly.
- 2.5 ml = 1/2 tsp. 5 ml = 1 tsp. 10 ml = 2 tsp. 15 ml = 3 tsp = 1 tbsp.
- Quick check: for medicine doses, dividing by 5 ml gives approximate teaspoons.
- Reverse: ml = tsp × 4.92892.
How to use our ml to tsp converter
Type any ml value in the ml field and the teaspoon result appears instantly. For medicine doses, dividing by 5 is a quick mental check. Both directions work without pressing a button.
How do you convert ml to teaspoons?
Divide the number of milliliters by 4.92892. For medicine, the FDA defines 1 teaspoon as exactly 5 ml for over-the-counter dosing, making 5 ml the practical standard. The exact US culinary teaspoon (4.929 ml) differs by less than 2%.
$$\text{tsp} = \text{ml} \div 4.92892$$
Worked examples: 1 ml = 0.203 tsp. 2.5 ml = 0.507 tsp (1/2 tsp). 5 ml = 1.01 tsp (1 tsp). 10 ml = 2.03 tsp (2 tsp). 15 ml = 3.04 tsp (1 tbsp). 30 ml = 6.09 tsp (2 tbsp). 60 ml = 12.17 tsp (4 tbsp).
Milliliters to teaspoons reference table
Common ml amounts expressed as teaspoons - for both cooking and medicine:
| Milliliters (ml) | Teaspoons (tsp) | Context |
|---|---|---|
| 1.25 ml | 0.25 tsp (1/4) | Spice pinch / tiny dose |
| 2.5 ml | 0.51 tsp (1/2) | Children's dose (half tsp) |
| 5 ml | 1.01 tsp (1) | Standard medicine dose |
| 7.5 ml | 1.52 tsp (1.5) | - |
| 10 ml | 2.03 tsp (2) | Common medicine dose |
| 12.5 ml | 2.54 tsp (2.5) | - |
| 15 ml | 3.04 tsp (3) | 1 tablespoon |
| 20 ml | 4.06 tsp | - |
| 30 ml | 6.09 tsp | 2 tablespoons / 1 fl oz |
| 60 ml | 12.17 tsp | 4 tablespoons / 1/4 cup |
FAQs about converting ml to tsp
How many teaspoons is 5 ml?
5 ml equals just over 1 teaspoon (1.014 tsp exactly). For medicine, 5 ml is defined as exactly 1 teaspoon by the FDA. For cooking, 5 ml vs 4.93 ml makes no practical difference.
How many teaspoons is 10 ml?
10 ml equals 2.03 teaspoons - essentially 2 teaspoons. Liquid medicine doses of 10 ml are described as 2 teaspoons on US labels.
How many teaspoons is 15 ml?
15 ml equals 3.04 teaspoons - about 3 teaspoons or 1 tablespoon. 15 ml is the common rounding for 1 tablespoon (actual: 14.787 ml).
How many teaspoons is 2.5 ml?
2.5 ml equals 0.507 teaspoons - half a teaspoon. This is a common children's medicine dose, specified as "1/2 teaspoon" on many labels.