90 US customary teaspoons in imperial cups

Conversion formula
How to convert 90 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: 90 ⁢ usteaspoon ≈ 1.561264096179357 ⁢ brcup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 imperial cup is equal to 0.640506626935923 times 90 US customary teaspoons.

It can also be expressed as: 90 US customary teaspoons is equal to $\frac{1}{\mathrm{0.640506626935923}}$ imperial cups.

Approximation

An approximate numerical result would be: ninety US customary teaspoons is about one point five six imperial cups, or alternatively, a imperial cup is about zero point six four times ninety US customary teaspoons.