221 metric teaspoons in US customary cups

Conversion formula
How to convert 221 metric teaspoons to US customary cups?

We know (by definition) that: $1\mathrm{brteaspoon}\approx 0.0211337641886519\mathrm{uscup}$

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

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

Conclusion: 221 ⁢ brteaspoon ≈ 4.67056188569207 ⁢ uscup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary cup is equal to 0.214107001357466 times 221 metric teaspoons.

It can also be expressed as: 221 metric teaspoons is equal to $\frac{1}{\mathrm{0.214107001357466}}$ US customary cups.

Approximation

An approximate numerical result would be: two hundred and twenty-one metric teaspoons is about four point six seven US customary cups, or alternatively, a US customary cup is about zero point two one times two hundred and twenty-one metric teaspoons.