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 680.5 milliliters into teaspoons we have to multiply 680.5 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

680.5 ml → V_(tsp)

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

V_(tsp) = 680.5 ml × 0.20288413535365 tsp

V_(tsp) = 138.06265410816 tsp

The final result is:

680.5 ml → 138.06265410816 tsp

We conclude that 680.5 milliliters is equivalent to 138.06265410816 teaspoons:

680.5 milliliters = 138.06265410816 teaspoons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 teaspoon is equal to 0.0072430883388391 × 680.5 milliliters.

Another way is saying that 680.5 milliliters is equal to 1 ÷ 0.0072430883388391 teaspoons.

Approximate result

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

680.5 ml ≅ 138.063 tsp

An alternative is also that one teaspoon is approximately zero point zero zero seven times six hundred eighty point five 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