21 US customary teaspoons in US customary cups

Conversion

21 US customary teaspoons is equivalent to 0.4375 US customary cups.[1]

Conversion formula
How to convert 21 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 21 ⁢ usteaspoon ≈ 0.0208333333333333 ⁢ uscup x ⁢ uscup

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

x ⁢ uscup ≈ 21 ⁢ usteaspoon 1 ⁢ usteaspoon * 0.0208333333333333 ⁢ uscup → x ⁢ uscup ≈ 0.43749999999999933 ⁢ uscup

Conclusion: 21 ⁢ usteaspoon ≈ 0.43749999999999933 ⁢ uscup

21 US customary teaspoons is equivalent to 0.4375 US customary cups

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary cup is equal to 2.28571428571429 times 21 US customary teaspoons.

It can also be expressed as: 21 US customary teaspoons is equal to 1 2.28571428571429 US customary cups.

Approximation

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

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