31 miles in kilometers

Result

The conversion result is: 31 miles is equivalent to 49.889664 kilometers.^[1]

Conversion formula
How to convert 31 miles to kilometers?

We know (by definition) that: 1 mile = 1.609344 km.

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

1 mile / 31 mile = 1.609344 km / x km

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

x km = (31 mile / 1 mile) * 1.609344 km → x km = 49.889664 km

Conclusion:

31 mile = 49.889664 km

Conversion in the opposite direction

The inverse of the conversion factor is that 1 kilometer is equal to 0.0200442320076559 times 31 miles.

It can also be expressed as: 31 miles is equal to 1 / 0.0200442320076559 kilometers.

Approximation

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