21 deciliters in metric teaspoons

Conversion formula
How to convert 21 deciliters to metric teaspoons?

We know (by definition) that: $1\mathrm{dl}\approx 20\mathrm{brteaspoon}$

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

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

Conclusion: 21 ⁢ dl ≈ 420 ⁢ brteaspoon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 metric teaspoon is equal to 0.00238095238095238 times 21 deciliters.

It can also be expressed as: 21 deciliters is equal to $\frac{1}{\mathrm{0.00238095238095238}}$ metric teaspoons.

Approximation

An approximate numerical result would be: twenty-one deciliters is about four hundred and twenty metric teaspoons, or alternatively, a metric teaspoon is about zero times twenty-one deciliters.