15 US tablespoons in US customary teaspoons

Result

The conversion result is: 15 US tablespoons is equivalent to 45 US customary teaspoons.^[1]

Conversion formula
How to convert 15 US tablespoons to US customary teaspoons?

We know (by definition) that: 1 ustablespoon ≈ 3 usteaspoon.

We can set up a proportion to solve for the number of US customary teaspoons.

1 ustablespoon / 15 ustablespoon ≈ 3 usteaspoon / x usteaspoon

Now, we cross multiply to solve for our unknown x:

x usteaspoon ≈ (15 ustablespoon / 1 ustablespoon) * 3 usteaspoon → x usteaspoon ≈ 45 usteaspoon

Conclusion:

15 ustablespoon ≈ 45 usteaspoon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary teaspoon is equal to 0.0222222222222222 times 15 US tablespoons.

It can also be expressed as: 15 US tablespoons is equal to 1 / 0.0222222222222222 US customary teaspoons.

Approximation

An approximate numerical result would be: fifteen US tablespoons is about zero US customary teaspoons, or alternatively, a US customary teaspoon is about zero point zero two times fifteen US tablespoons.