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Unit Converter

Conversion formula

The conversion factor from tablespoons to teaspoons is 3.0000000000122, which means that 1 tablespoon is equal to 3.0000000000122 teaspoons:

1 tbsp = 3.0000000000122 tsp

To convert 15 tablespoons into teaspoons we have to multiply 15 by the conversion factor in order to get the volume amount from tablespoons to teaspoons. We can also form a simple proportion to calculate the result:

1 tbsp → 3.0000000000122 tsp

15 tbsp → V(tsp)

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

V(tsp) = 15 tbsp × 3.0000000000122 tsp

V(tsp) = 45.000000000183 tsp

The final result is:

15 tbsp → 45.000000000183 tsp

We conclude that 15 tablespoons is equivalent to 45.000000000183 teaspoons:

15 tablespoons = 45.000000000183 teaspoons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 teaspoon is equal to 0.022222222222132 × 15 tablespoons.

Another way is saying that 15 tablespoons is equal to 1 ÷ 0.022222222222132 teaspoons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that fifteen tablespoons is approximately forty-five teaspoons:

15 tbsp ≅ 45 tsp

An alternative is also that one teaspoon is approximately zero point zero two two times fifteen tablespoons.

Conversion table

tablespoons to teaspoons chart

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

tablespoons (tbsp) teaspoons (tsp)
16 tablespoons 48 teaspoons
17 tablespoons 51 teaspoons
18 tablespoons 54 teaspoons
19 tablespoons 57 teaspoons
20 tablespoons 60 teaspoons
21 tablespoons 63 teaspoons
22 tablespoons 66 teaspoons
23 tablespoons 69 teaspoons
24 tablespoons 72 teaspoons
25 tablespoons 75 teaspoons