21 US customary cups in deciliters

Result

The conversion result is: 21 US customary cups is equivalent to 49.683529665 deciliters.^[1]

Conversion formula
How to convert 21 US customary cups to deciliters?

We know (by definition) that: 1 uscup ≈ 2.365882365 dl.

We can set up a proportion to solve for the number of deciliters.

1 uscup / 21 uscup ≈ 2.365882365 dl / x dl

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

x dl ≈ (21 uscup / 1 uscup) * 2.365882365 dl → x dl ≈ 49.683529665 dl

Conclusion:

21 uscup ≈ 49.683529665 dl

Conversion in the opposite direction

The inverse of the conversion factor is that 1 deciliter is equal to 0.0201273944653827 times 21 US customary cups.

It can also be expressed as: 21 US customary cups is equal to 1 / 0.0201273944653827 deciliters.

Approximation

An approximate numerical result would be: twenty-one US customary cups is about forty-nine point six seven deciliters, or alternatively, a deciliter is about zero point zero two times twenty-one US customary cups.