18 metric teaspoons in US customary cups

Conversion formula
How to convert 18 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: 18 ⁢ brteaspoon ≈ 0.3804077553957342 ⁢ uscup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary cup is equal to 2.62875818333333 times 18 metric teaspoons.

It can also be expressed as: 18 metric teaspoons is equal to $\frac{1}{\mathrm{2.62875818333333}}$ US customary cups.

Approximation

An approximate numerical result would be: eighteen metric teaspoons is about zero point three eight US customary cups, or alternatively, a US customary cup is about two point six two times eighteen metric teaspoons.