This miles to km converter turns miles into kilometers as you type, using the exact length of the mile. It helps when a US or UK route, a car’s odometer or a training plan is in miles and the rest of your life is in kilometers. It runs in your browser and spends no credits.
How many km is a mile
One mile is exactly 1.609344 kilometers, or 1,609.344 meters. That is the international statute mile, the one on road signs and running tracks in the US and the UK.
Miles to km formula
Multiply the miles by 1.609344:
km = mi × 1.609344
The common shortcut is to multiply by 1.6. It is close for short trips and slips as the distance grows: 200 miles × 1.6 is 320 km, while the exact figure is 321.87 km.
Miles to kilometers table
| Miles | Kilometers |
|---|---|
| 0.25 mi | 0.4023 km |
| 0.5 mi | 0.8047 km |
| 1 mi | 1.6093 km |
| 2 mi | 3.2187 km |
| 3 mi | 4.8280 km |
| 5 mi | 8.0467 km |
| 10 mi | 16.0934 km |
| 13.1 mi | 21.0824 km |
| 26.2 mi | 42.1648 km |
| 50 mi | 80.4672 km |
| 60 mi | 96.5606 km |
| 100 mi | 160.9344 km |
| 500 mi | 804.672 km |
Worked example: a road trip
A drive planned at 250 miles works out to 250 × 1.609344 = 402.34 km. If you keep up 65 miles an hour for three hours, you cover 195 miles, which is 313.82 km. For a whole cross-country leg of 500 miles, the converter gives 804.67 km, about 4.7 km more than the 1.6 shortcut would suggest.
Miles on the track
A standard outdoor track is 400 m per lap, so four laps make 1,600 m, which is 9.344 m short of a full mile. That is why the classic mile race on a metric track starts a little behind the usual line. A quarter mile, the old drag-racing distance, is 402.34 m.
FAQ
Is 26.2 miles exactly a marathon?
Almost. 26.2 miles is 42.1648 km, while the official marathon is 42.195 km, which is 26.2188 miles.
Does this convert nautical miles?
No. It uses the statute mile. The nautical mile is a separate unit of 1,852 m and is not in the unit list.
What does it cost?
It comes with the Nexin library: Nexin Lite or Nexin Pro opens it, and it spends no credits.
