Convert Mile to Kilometer
1 mile = 1.609344 kilometers (mi to km).
The mile (mi) and the kilometer (km) both measure length. A mile is larger than a kilometer — one mile contains 1.60934 kilometers. Going the other way, one kilometer is 0.621371 miles. The converter above does this in real time, and the reference chart lists the values that come up most often.
1 mi = 1.609344 km
How to convert Miles to Kilometers
Multiply the mile value by 1.60934 to get kilometers.
Example: 10 miles = 16.0934 kilometers.
One mile is exactly 1.609344 kilometers — the definition is fixed, not approximate, because the meter is defined in terms of the speed of light and the foot (and hence the mile) is defined in terms of the meter. Multiplying a mile figure by 1.609344 always gives an exact result, with any imprecision coming only from subsequent rounding.
Speed limits and fuel economy depend on this conversion. A 60 mph speed limit equals 96.561 km/h. A car rated at 30 mpg (US miles per US gallon) operates at a different efficiency than a car rated at 30 km/L — the two figures are nearly five times apart. When comparing vehicle specs across the US and European markets, the mile-to-km conversion is just one part of a two-step process that also involves the gallon-to-liter step.
Historic and literary distances still quoted in miles — 'the Barkley Marathons cover 100 miles,' 'the race covers the 2.4-mile swim' — need this factor to communicate with a global audience. 100 miles is 160.9344 km; 2.4 miles is 3.862 km. In scientific contexts, older American and British astronomical literature sometimes gives distances in miles rather than kilometers, requiring conversion before comparison with modern mission data.
Mile to Kilometer Conversion Chart
| Miles | Kilometers |
|---|---|
| 1 mi | 1.609344 km |
| 2 mi | 3.218688 km |
| 3 mi | 4.828032 km |
| 5 mi | 8.04672 km |
| 10 mi | 16.09344 km |
| 20 mi | 32.18688 km |
| 25 mi | 40.2336 km |
| 50 mi | 80.4672 km |
| 100 mi | 160.9344 km |
| 1000 mi | 1,609.344 km |
Frequently Asked Questions
- How many kilometers are in a mile?
- There are 1.609344 kilometers in 1 mile.
- How do you convert miles to kilometers?
- Multiply the mile value by 1.60934 to get kilometers.
- What is 5 miles in kilometers?
- 5 miles equals 8.04672 kilometers.
- What is 100 miles in kilometers?
- 100 miles equals 160.9344 kilometers.
- What is 1 kilometer in miles?
- 1 kilometer equals 0.62137119 miles.
- Is this mile to kilometer converter free?
- Yes. The converter is free, needs no sign-up, and runs entirely in your browser — the values you enter never leave your device.