45 kilometers in centimeters

Conversion formula
How to convert 45 kilometers to centimeters?

We know (by definition) that: $1\mathrm{km}=100000\mathrm{cm}$

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

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

Conclusion: 45 ⁢ km = 4500000 ⁢ cm

Conversion in the opposite direction

The inverse of the conversion factor is that 1 centimeter is equal to 2.22222222222222e-07 times 45 kilometers.

It can also be expressed as: 45 kilometers is equal to $\frac{1}{\mathrm{2.22222222222222e-07}}$ centimeters.

Approximation

An approximate numerical result would be: forty-five kilometers is about four million, five hundred thousand centimeters, or alternatively, a centimeter is about zero times forty-five kilometers.