45 meters in kilometers

Conversion formula
How to convert 45 meters to kilometers?

We know (by definition) that: $1\mathrm{m}=0.001\mathrm{km}$

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

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

Conclusion: 45 ⁢ m = 0.045 ⁢ km

Conversion in the opposite direction

The inverse of the conversion factor is that 1 kilometer is equal to 22.2222222222222 times 45 meters.

It can also be expressed as: 45 meters is equal to $\frac{1}{\mathrm{22.2222222222222}}$ kilometers.

Approximation

An approximate numerical result would be: forty-five meters is about zero point zero four kilometers, or alternatively, a kilometer is about twenty-two point two one times forty-five meters.