90 meters in kilometers

Conversion formula
How to convert 90 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: 90 ⁢ m = 0.09 ⁢ km

Conversion in the opposite direction

The inverse of the conversion factor is that 1 kilometer is equal to 11.1111111111111 times 90 meters.

It can also be expressed as: 90 meters is equal to $\frac{1}{\mathrm{11.1111111111111}}$ kilometers.

Approximation

An approximate numerical result would be: ninety meters is about zero kilometers, or alternatively, a kilometer is about eleven point one zero times ninety meters.