Miles to Kilometres Converter
Convert miles (mi) to kilometres (km) instantly. Length conversions come up when reading overseas furniture specs, cycling the Round Island Route in kilometres while a foreign app shows miles, or checking marine distances in the Singapore Strait in nautical miles.
Result
- Kilometres
- 1.6093 km
How to use the miles to kilometres converter
- Enter the miles (mi).
- The results update as you type, or press Calculate.
- Read the kilometres first, then the supporting figures below it.
Formula
Kilometres = miles × 1.609344
Worked example
For example, with these inputs:
- Miles (mi): 1
the calculator returns:
- Kilometres: 1.6093 km
Miles to Kilometres table
| Miles | Kilometres |
|---|---|
| 1 mi | 1.6093 km |
| 2 mi | 3.2187 km |
| 5 mi | 8.0467 km |
| 10 mi | 16.0934 km |
| 20 mi | 32.1869 km |
| 25 mi | 40.2336 km |
| 50 mi | 80.4672 km |
| 100 mi | 160.9344 km |
| 250 mi | 402.336 km |
| 500 mi | 804.672 km |
| 1,000 mi | 1,609.34 km |
About this conversion
Length conversions come up when reading overseas furniture specs, cycling the Round Island Route in kilometres while a foreign app shows miles, or checking marine distances in the Singapore Strait in nautical miles.
Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
Frequently asked questions
How many kilometres are in one mile?
1 mi = 1.6093 km.
How do I convert mi to km?
Kilometres = miles × 1.609344.