How to convert 645 US customary teaspoons to imperial cups?
We know (by definition) that:
We can set up a proportion to solve for the number of imperial cups.
Now, we cross multiply to solve for our unknown :
Conversion in the opposite direction
The inverse of the conversion factor is that 1 imperial cup is equal to 0.0893730177119892 times 645 US customary teaspoons.
It can also be expressed as: 645 US customary teaspoons is equal to imperial cups.
An approximate numerical result would be: six hundred and forty-five US customary teaspoons is about eleven point one eight imperial cups, or alternatively, a imperial cup is about zero point zero nine times six hundred and forty-five US customary teaspoons.
 The precision is 15 significant digits (fourteen digits to the right of the decimal point).Results may contain small errors due to the use of floating point arithmetic.