Free ml to tsp Converter

Convert Milliliters to Teaspoons Instantly

This ml to tsp converter delivers a quick, reliable method to turn any milliliter volume into teaspoons. Whether you're working on a cooking conversion for a recipe or preparing a medicine dosage, the tool returns an accurate result in one step.

Using it is straightforward: enter the amount in milliliters (ml) and the equivalent in teaspoons (tsp) appears immediately. For instance, inputting 10 ml gives 2 tsp, while 40 ml yields 8 tsp.

Conversion Principle

The calculator relies on the metric teaspoon definition:

$$1\ \text{tsp} = 5\ \text{ml}$$

To perform the conversion manually, divide the number of milliliters by 5:

$$\text{tsp} = \frac{\text{ml}}{5}$$

For 40 ml: $40 \div 5 = 8$, so the answer is 8 tsp. Similarly, 10 ml becomes 2 tsp.

Note about US teaspoons: The US customary teaspoon holds roughly 4.93 ml. This very small difference is negligible for everyday cooking and household measurements, so the converter still works well with US‑style spoons.

Quick Reference Table

The following table lists the most frequent conversions from milliliters to metric teaspoons, including fractional amounts.

Volume (ml)	Teaspoons (tsp)
0.625	1/8
1	1/5
1.25	1/4
2.5	1/2
3.75	3/4
5	1
10	2
15	3
20	4
25	5
30	6
40	8

This mL to tsp conversion chart covers the volumes most often used in the kitchen or when measuring liquid medication. Keep it handy for quick reference.

Whether you need to adjust a recipe, measure a liquid ingredient, or portion a precise dose, this milliliters to teaspoons tool saves time and minimizes errors. It's completely free and available online whenever you need it.