Conversion formula

The conversion factor from milliliters to teaspoons is 0.20288413535365, which means that 1 milliliter is equal to 0.20288413535365 teaspoons:

1 ml = 0.20288413535365 tsp

To convert 20.9 milliliters into teaspoons we have to multiply 20.9 by the conversion factor in order to get the volume amount from milliliters to teaspoons. We can also form a simple proportion to calculate the result:

1 ml → 0.20288413535365 tsp

20.9 ml → V_(tsp)

Solve the above proportion to obtain the volume V in teaspoons:

V_(tsp) = 20.9 ml × 0.20288413535365 tsp

V_(tsp) = 4.2402784288914 tsp

The final result is:

20.9 ml → 4.2402784288914 tsp

We conclude that 20.9 milliliters is equivalent to 4.2402784288914 teaspoons:

20.9 milliliters = 4.2402784288914 teaspoons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 teaspoon is equal to 0.2358335700756 × 20.9 milliliters.

Another way is saying that 20.9 milliliters is equal to 1 ÷ 0.2358335700756 teaspoons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that twenty point nine milliliters is approximately four point two four teaspoons:

20.9 ml ≅ 4.24 tsp

An alternative is also that one teaspoon is approximately zero point two three six times twenty point nine milliliters.

Conversion table

milliliters to teaspoons chart

For quick reference purposes, below is the conversion table you can use to convert from milliliters to teaspoons