21 centiliters in US customary cups

Result

The conversion result is: 21 centiliters is equivalent to 0.887618095923379 US customary cups.^[1]

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

We know (by definition) that: 1 centiliter ≈ 0.0422675283773037 uscup.

We can set up a proportion to solve for the number of US customary cups.

1 centiliter / 21 centiliter ≈ 0.0422675283773037 uscup / x uscup

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

x uscup ≈ (21 centiliter / 1 centiliter) * 0.0422675283773037 uscup → x uscup ≈ 0.8876180959233777 uscup

Conclusion:

21 centiliter ≈ 0.8876180959233777 uscup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary cup is equal to 1.12661065 times 21 centiliters.

It can also be expressed as: 21 centiliters is equal to 1 / 1.12661065 US customary cups.

Approximation

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