WeBlogy

30 miles is equivalent to 48.28032 kilometers.

We know (by definition) that: 1 mile = 1.609344 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: 30   mile = 48.28032   km

The inverse of the conversion factor is that 1 kilometer is equal to 0.0207123730745778 times 30 miles.

It can also be expressed as: 30 miles is equal to 1 0.0207123730745778 kilometers.

Approximation

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

Units involved

This is how the units in this conversion are defined:

Miles

The mile is an English unit of length of linear measure equal to 5,280 feet, or 1,760 yards, and standardised as exactly 1,609.344 metres by international agreement in 1959.

Kilometers

The kilometre or kilometer (American spelling) is a unit of length in the metric system, equal to one thousand metres (kilo being the SI prefix for 1000). It is now the measurement unit used officially for expressing distances between geographical places on land in most of the world; notable exceptions are the United States and the road network of the United Kingdom where the statute mile is the official unit used.

[1] The precision is 15 significant digits (fourteen digits to the right of the decimal point).

ncG1vNJzZmibn6PDpr7Tnqlnppmjt6J7y56loKyYZLqquMSsZK2nXaC2rbvMnqueqqNkgHF5zKKjnmWkpHqsuY4%3D