29 kilometers in millimeters

Conversion formula
How to convert 29 kilometers to millimeters?

We know (by definition) that: $1\mathrm{km}=1000000\mathrm{mm}$

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

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

Conclusion: 29 ⁢ km = 29000000 ⁢ mm

Conversion in the opposite direction

The inverse of the conversion factor is that 1 millimeter is equal to 3.44827586206897e-08 times 29 kilometers.

It can also be expressed as: 29 kilometers is equal to $\frac{1}{\mathrm{3.44827586206897e-08}}$ millimeters.

Approximation

An approximate numerical result would be: twenty-nine kilometers is about twenty-nine million millimeters, or alternatively, a millimeter is about zero times twenty-nine kilometers.