21 US customary cups in US tablespoons

Conversion formula
How to convert 21 US customary cups to US tablespoons?

We know (by definition) that: $1\mathrm{uscup}\approx 16\mathrm{ustablespoon}$

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

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

Conclusion: 21 ⁢ uscup ≈ 336 ⁢ ustablespoon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US tablespoon is equal to 0.00297619047619048 times 21 US customary cups.

It can also be expressed as: 21 US customary cups is equal to $\frac{1}{\mathrm{0.00297619047619048}}$ US tablespoons.

Approximation

An approximate numerical result would be: twenty-one US customary cups is about three hundred and thirty-six US tablespoons, or alternatively, a US tablespoon is about zero times twenty-one US customary cups.