420 decimeters in meters

Conversion formula
How to convert 420 decimeters to meters?

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

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

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

Conclusion: 420 ⁢ dm = 42.0 ⁢ m

Conversion in the opposite direction

The inverse of the conversion factor is that 1 meter is equal to 0.0238095238095238 times 420 decimeters.

It can also be expressed as: 420 decimeters is equal to $\frac{1}{\mathrm{0.0238095238095238}}$ meters.

Approximation

An approximate numerical result would be: four hundred and twenty decimeters is about zero meters, or alternatively, a meter is about zero point zero two times four hundred and twenty decimeters.