128 US customary teaspoons in US customary cups
Result
The conversion result is: 128 US customary teaspoons is equivalent to 2.66666666666667 US customary cups.[1]
Conversion formula
How to convert 128 US customary teaspoons to US customary cups?
We know (by definition) that: 1 usteaspoon ≈ 0.0208333333333333 uscup.
We can set up a proportion to solve for the number of US customary cups.
1 usteaspoon / 128 usteaspoon ≈ 0.0208333333333333 uscup / x uscup
Now, we cross multiply to solve for our unknown x:
x uscup ≈ (128 usteaspoon / 1 usteaspoon) * 0.0208333333333333 uscup → x uscup ≈ 2.6666666666666625 uscup
Conclusion:
128 usteaspoon ≈ 2.6666666666666625 uscup
Conversion in the opposite direction
The inverse of the conversion factor is that 1 US customary cup is equal to 0.375 times 128 US customary teaspoons.
It can also be expressed as: 128 US customary teaspoons is equal to 1 / 0.375 US customary cups.
Approximation
An approximate numerical result would be: one hundred and twenty-eight US customary teaspoons is about two point six seven US customary cups, or alternatively, a US customary cup is about zero point three eight times one hundred and twenty-eight US customary teaspoons.
Footnotes
[1] 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.