3 centimeters in decimeters

Conversion formula
How to convert 3 centimeters to decimeters?

We know (by definition) that: $1\mathrm{cm}=0.1\mathrm{dm}$

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

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

Conclusion: 3 ⁢ cm = 0.30000000000000004 ⁢ dm

Conversion in the opposite direction

The inverse of the conversion factor is that 1 decimeter is equal to 3.33333333333333 times 3 centimeters.

It can also be expressed as: 3 centimeters is equal to $\frac{1}{\mathrm{3.33333333333333}}$ decimeters.

Approximation

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