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 664 milliliters into teaspoons we have to multiply 664 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

664 ml → V_(tsp)

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

V_(tsp) = 664 ml × 0.20288413535365 tsp

V_(tsp) = 134.71506587483 tsp

The final result is:

664 ml → 134.71506587483 tsp

We conclude that 664 milliliters is equivalent to 134.71506587483 teaspoons:

664 milliliters = 134.71506587483 teaspoons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 teaspoon is equal to 0.007423074720753 × 664 milliliters.

Another way is saying that 664 milliliters is equal to 1 ÷ 0.007423074720753 teaspoons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred sixty-four milliliters is approximately one hundred thirty-four point seven one five teaspoons:

664 ml ≅ 134.715 tsp

An alternative is also that one teaspoon is approximately zero point zero zero seven times six hundred sixty-four 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