Use this free online miles to kilometers converter to quickly convert mi to km. Simply enter the value in miles, and the tool will instantly display the equivalent distance in kilometers.

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Result
1 mi = 1.609 km
Miles Kilometers

How to Convert Miles to Kilometers

Miles belong to the imperial system, while kilometers belong to the metric system. To convert a value from miles to kilometers, multiply the number of miles by 1.609344.

Formula: km = mi × 1.609344

Example: Convert 5 miles to km. 5 mi × 1.609344 = 8.04672 km So, 5 miles is equal to approximately 8.05 kilometers.

What is a Mile?

A mile (mi) is a unit of length in the imperial and US customary systems of measurement. It is defined as exactly 1,609.344 meters, or 5,280 feet. Miles are mainly used for measuring distances in the United States and the United Kingdom, especially on road signs.

What is a Kilometer?

A kilometer (km) is a unit of length in the metric system, equal to 1,000 meters. It is the standard unit used almost everywhere in the world to measure distances between cities, road lengths, and travel distances.

Mile to Kilometer Relationship

1 mi = 1.609344 km 1 km = 0.621371 mi

This exact conversion factor comes from the internationally agreed definitions of the mile and meter, established by treaty in 1959.

Mi to Km Conversion Table

Miles (mi)Kilometers (km)
1 mi1.609 km
2 mi3.219 km
5 mi8.047 km
10 mi16.093 km
20 mi32.187 km
50 mi80.467 km
100 mi160.934 km

Solved Examples

Example 1: Convert 3 miles to km. 3 × 1.609344 = 4.828 km

Example 2: Convert 15 miles to km. 15 × 1.609344 = 24.14 km

Example 3: Which is greater, 10 km or 6 miles? 6 mi = 9.656 km, so 10 km is greater than 6 miles.

Frequently Asked Questions

How many km are in 1 mile?

There are approximately 1.609 kilometers in 1 mile.

How do I convert miles to km quickly?

Multiply the mile value by 1.609344 to get the equivalent distance in kilometers.

Is a kilometer shorter than a mile?

Yes, a kilometer is shorter than a mile — 1 mile equals about 1.609 kilometers.

Where are miles still used instead of km?

Miles are still used for road distances and speed limits mainly in the United States and the United Kingdom, while most other countries use kilometers.