4 decimeters in inches

Conversion formula
How to convert 4 decimeters to inches?

We know (by definition) that: $1\mathrm{dm}\approx 3.9370079\mathrm{in}$

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

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

Conclusion: 4 ⁢ dm ≈ 15.7480316 ⁢ in

Conversion in the opposite direction

The inverse of the conversion factor is that 1 inch is equal to 0.0635 times 4 decimeters.

It can also be expressed as: 4 decimeters is equal to $\frac{1}{\mathrm{0.0635}}$ inches.

Approximation

An approximate numerical result would be: four decimeters is about fifteen point seven five inches, or alternatively, a inch is about zero point zero six times four decimeters.