3 decimeters in centimeters

Conversion formula
How to convert 3 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: 3 ⁢ dm = 30 ⁢ cm

Conversion in the opposite direction

The inverse of the conversion factor is that 1 centimeter is equal to 0.0333333333333333 times 3 decimeters.

It can also be expressed as: 3 decimeters is equal to $\frac{1}{\mathrm{0.0333333333333333}}$ centimeters.

Approximation

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