638 metric teaspoons in US customary cups
Result
The conversion result is: 638 metric teaspoons is equivalent to 13.4833415523599 US customary cups.[1]
Conversion formula
How to convert 638 metric teaspoons to US customary cups?
We know (by definition) that: 1 brteaspoon ≈ 0.0211337641886519 uscup.
We can set up a proportion to solve for the number of US customary cups.
1 brteaspoon / 638 brteaspoon ≈ 0.0211337641886519 uscup / x uscup
Now, we cross multiply to solve for our unknown x:
x uscup ≈ (638 brteaspoon / 1 brteaspoon) * 0.0211337641886519 uscup → x uscup ≈ 13.483341552359912 uscup
Conclusion:
638 brteaspoon ≈ 13.483341552359912 uscup
Conversion in the opposite direction
The inverse of the conversion factor is that 1 US customary cup is equal to 0.0741655913793103 times 638 metric teaspoons.
It can also be expressed as: 638 metric teaspoons is equal to 1 / 0.0741655913793103 US customary cups.
Approximation
An approximate numerical result would be: six hundred and thirty-eight metric teaspoons is about thirteen point four eight US customary cups, or alternatively, a US customary cup is about zero point zero seven times six hundred and thirty-eight metric 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.