21 metric teaspoons in US customary cups

Result

The conversion result is: 21 metric teaspoons is equivalent to 0.443809047961689 US customary cups.^[1]

Conversion formula
How to convert 21 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 / 21 brteaspoon ≈ 0.0211337641886519 uscup / x uscup

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

x uscup ≈ (21 brteaspoon / 1 brteaspoon) * 0.0211337641886519 uscup → x uscup ≈ 0.44380904796168985 uscup

Conclusion:

21 brteaspoon ≈ 0.44380904796168985 uscup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary cup is equal to 2.2532213 times 21 metric teaspoons.

It can also be expressed as: 21 metric teaspoons is equal to 1 / 2.2532213 US customary cups.

Approximation

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