21 US customary cups in liters

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

We know (by definition) that: $1\mathrm{uscup}\approx 0.2365882365\mathrm{liter}$

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

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

Conclusion: 21 ⁢ uscup ≈ 4.9683529664999995 ⁢ liter

Conversion in the opposite direction

The inverse of the conversion factor is that 1 liter is equal to 0.201273944653827 times 21 US customary cups.

It can also be expressed as: 21 US customary cups is equal to $\frac{1}{\mathrm{0.201273944653827}}$ liters.

Approximation

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