Conversion formula

The conversion factor from teaspoons to tablespoons is 0.33333333333198, which means that 1 teaspoon is equal to 0.33333333333198 tablespoons:

1 tsp = 0.33333333333198 tbsp

To convert 420 teaspoons into tablespoons we have to multiply 420 by the conversion factor in order to get the volume amount from teaspoons to tablespoons. We can also form a simple proportion to calculate the result:

1 tsp → 0.33333333333198 tbsp

420 tsp → V_(tbsp)

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

V_(tbsp) = 420 tsp × 0.33333333333198 tbsp

V_(tbsp) = 139.99999999943 tbsp

The final result is:

420 tsp → 139.99999999943 tbsp

We conclude that 420 teaspoons is equivalent to 139.99999999943 tablespoons:

420 teaspoons = 139.99999999943 tablespoons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 tablespoon is equal to 0.0071428571428861 × 420 teaspoons.

Another way is saying that 420 teaspoons is equal to 1 ÷ 0.0071428571428861 tablespoons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that four hundred twenty teaspoons is approximately one hundred forty tablespoons:

420 tsp ≅ 140 tbsp

An alternative is also that one tablespoon is approximately zero point zero zero seven times four hundred twenty teaspoons.

Conversion table

teaspoons to tablespoons chart

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