638 US customary teaspoons in imperial cups

Conversion formula
How to convert 638 US customary teaspoons to imperial cups?

We know (by definition) that: $1\mathrm{usteaspoon}\approx 0.0173473788464373\mathrm{brcup}$

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

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

Conclusion: 638 ⁢ usteaspoon ≈ 11.067627704026997 ⁢ brcup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 imperial cup is equal to 0.0903535994110236 times 638 US customary teaspoons.

It can also be expressed as: 638 US customary teaspoons is equal to $\frac{1}{\mathrm{0.0903535994110236}}$ imperial cups.

Approximation

An approximate numerical result would be: six hundred and thirty-eight US customary teaspoons is about eleven point zero seven imperial cups, or alternatively, a imperial cup is about zero point zero nine times six hundred and thirty-eight US customary teaspoons.