21 centiliters in deciliters

Result

The conversion result is: 21 centiliters is equivalent to 2.1 deciliters.^[1]

Conversion formula
How to convert 21 centiliters to deciliters?

We know (by definition) that: 1 centiliter ≈ 0.1 dl.

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

1 centiliter / 21 centiliter ≈ 0.1 dl / x dl

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

x dl ≈ (21 centiliter / 1 centiliter) * 0.1 dl → x dl ≈ 2.1 dl

Conclusion:

21 centiliter ≈ 2.1 dl

Conversion in the opposite direction

The inverse of the conversion factor is that 1 deciliter is equal to 0.476190476190476 times 21 centiliters.

It can also be expressed as: 21 centiliters is equal to 1 / 0.476190476190476 deciliters.

Approximation

An approximate numerical result would be: twenty-one centiliters is about zero deciliters, or alternatively, a deciliter is about zero point four eight times twenty-one centiliters.