639 metric teaspoons in US customary cups

Result

The conversion result is: 639 metric teaspoons is equivalent to 13.5044753165485 US customary cups.[1]

Conversion formula
How to convert 639 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 / 639 brteaspoon ≈ 0.0211337641886519 uscup / x uscup

Now, we cross multiply to solve for our unknown x:

x uscup ≈ (639 brteaspoon / 1 brteaspoon) * 0.0211337641886519 uscup → x uscup ≈ 13.504475316548563 uscup

Conclusion:

639 brteaspoon ≈ 13.504475316548563 uscup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary cup is equal to 0.0740495262910798 times 639 metric teaspoons.

It can also be expressed as: 639 metric teaspoons is equal to 1 / 0.0740495262910798 US customary cups.

Approximation

An approximate numerical result would be: six hundred and thirty-nine metric teaspoons is about thirteen point five zero US customary cups, or alternatively, a US customary cup is about zero point zero seven times six hundred and thirty-nine 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.