Miles to kilometers
Instantly convert distances from miles (mi) to kilometers (km) with our simple and accurate converter. Get quick results and learn how miles translate to kilometers.
1 mi = 1.609344 km
Formula
This formula shows how to convert miles (mi) to kilometers (km) using the exact conversion factor. It helps you calculate manually, or check results from the converter above.
Conversion formula: km = mi × 1.609344
Scientific basis: This relationship is based on the exact definition of the mile, where 1 mile is defined as exactly 1.609344 kilometers.
Equivalent value: 1 mi = 1.609344 km
Example: 5 mi = 5 × 1.609344 = 8.04672 km
Explanation: To convert miles to kilometers, multiply by 1.609344. This value comes directly from the exact international definition of the mile. The converter uses this exact value without rounding.
Table
| Miles (mi) | Kilometers (km) |
|---|---|
| 1 mi | 1.609344 km |
| 2 mi | 3.218688 km |
| 3 mi | 4.828032 km |
| 4 mi | 6.437376 km |
| 5 mi | 8.04672 km |
| 10 mi | 16.09344 km |
| 25 mi | 40.2336 km |
| 50 mi | 80.4672 km |
| 75 mi | 120.7008 km |
| 100 mi | 160.9344 km |
| 1,000 mi | 1,609.344 km |
FAQ
What is miles?
A mile is a unit of length in both the imperial and US customary system, primarily used in the United States and the United Kingdom. One mile is defined as exactly 1.609344 kilometers, and equal to 1,760 yards or 5,280 feet.
What is kilometers?
A kilometer is a unit of length in the metric system (SI). The prefix kilo (k) means one thousand times the base unit, defining one kilometer as exactly 1,000 meters.
What is the abbreviation for miles?
The standard abbreviation for miles is mi.
How to convert from miles to kilometers?
To convert miles to kilometers, multiply the number of miles by 1.609344.
Example: 25 mi × 1.609344 = 40.2336 km
How many kilometers is there in 1 mile?
There are exactly 1.609344 kilometers in 1 mile.