31 meters in kilometers

Conversion formula
How to convert 31 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: 31 ⁢ m = 0.031 ⁢ km

Conversion in the opposite direction

The inverse of the conversion factor is that 1 kilometer is equal to 32.258064516129 times 31 meters.

It can also be expressed as: 31 meters is equal to $\frac{1}{\mathrm{32.258064516129}}$ kilometers.

Approximation

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