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Converters
Miles to KM
One mile is exactly 1.609344 kilometres. Multiply miles by 1.609344 for road distances, race results, and speed limits written in miles per hour.
1 mi = 1.6093 km
How to use it
- Type a value in miles. The kilometres result updates immediately.
- Read the full factor under the result if you need to check the math by hand.
- Use the table for the values people look up most often.
- Open the reverse converter when you already have kilometres.
Formula
kilometres = miles × 1.609344
This is the international statute mile of exactly 1,609.344 metres. The nautical mile, used at sea and in aviation, is 1.852 kilometres and is a different unit.
A 60 mph highway, in km/h
60 miles × 1.609344 = 96.561 kilometres. A 100 km/h limit is 62.137 mph, so the two common highway numbers are not the same speed.
A 26.2 mile marathon is 42.165 kilometres, a hair under the official 42.195 km course because 26.2 is already rounded. A 3 mile run is 4.828 kilometres. Sixty miles per hour is 96.561 kilometres per hour. If a chart says “nautical miles”, do not use this factor.
Common miles to km values
| miles | kilometres |
|---|---|
| 1 mi | 1.6093 km |
| 3.1 mi | 4.989 km |
| 5 mi | 8.0467 km |
| 10 mi | 16.0934 km |
| 26.2 mi | 42.1648 km |
| 60 mi | 96.5606 km |
Questions
How do I convert miles to kilometres?
Use kilometres = miles × 1.609344. The converter applies that factor at full precision and rounds only what it displays.
Is this miles to km factor exact?
This is the international statute mile of exactly 1,609.344 metres. The nautical mile, used at sea and in aviation, is 1.852 kilometres and is a different unit.
Is a mile 1.6 kilometres?
Almost. A mile is exactly 1.609344 kilometres. Using 1.6 is fine for a quick sense of distance and about half a percent low.
Does ProHacks store the number I type?
No. The conversion runs in your browser. The value is not uploaded with the calculation.