81 US customary teaspoons in imperial cups

Conversion formula
How to convert 81 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: 81 ⁢ usteaspoon ≈ 1.4051376865614211 ⁢ brcup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 imperial cup is equal to 0.711674029928803 times 81 US customary teaspoons.

It can also be expressed as: 81 US customary teaspoons is equal to $\frac{1}{\mathrm{0.711674029928803}}$ imperial cups.

Approximation

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