18 decimeters in kilometers

Conversion formula
How to convert 18 decimeters to kilometers?

We know (by definition) that: $1\mathrm{dm}=0.0001\mathrm{km}$

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

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

Conclusion: 18 ⁢ dm = 0.0018000000000000002 ⁢ km

Conversion in the opposite direction

The inverse of the conversion factor is that 1 kilometer is equal to 555.555555555556 times 18 decimeters.

It can also be expressed as: 18 decimeters is equal to $\frac{1}{\mathrm{555.555555555556}}$ kilometers.

Approximation

An approximate numerical result would be: eighteen decimeters is about zero kilometers, or alternatively, a kilometer is about five hundred and fifty-five point five five times eighteen decimeters.