20 miles in kilometers

Conversion formula
How to convert 20 miles to kilometers?

We know (by definition) that: $1\mathrm{mile}=1.609344\mathrm{km}$

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

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

Conclusion: 20 ⁢ mile = 32.18688 ⁢ km

Conversion in the opposite direction

The inverse of the conversion factor is that 1 kilometer is equal to 0.0310685596118667 times 20 miles.

It can also be expressed as: 20 miles is equal to $\frac{1}{\mathrm{0.0310685596118667}}$ kilometers.

Approximation

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