9 decimeters in centimeters

Conversion formula
How to convert 9 decimeters to centimeters?

We know (by definition) that: $1\mathrm{dm}=10\mathrm{cm}$

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

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

Conclusion: 9 ⁢ dm = 90 ⁢ cm

Conversion in the opposite direction

The inverse of the conversion factor is that 1 centimeter is equal to 0.0111111111111111 times 9 decimeters.

It can also be expressed as: 9 decimeters is equal to $\frac{1}{\mathrm{0.0111111111111111}}$ centimeters.

Approximation

An approximate numerical result would be: nine decimeters is about zero centimeters, or alternatively, a centimeter is about zero point zero one times nine decimeters.