Miles to km
1 mi = 1.609344 km. Type in either box to convert both ways, in exact decimals.
The formula
1 mi = 1.609344 km
To convert miles to kilometres, multiply by 1.609344.
A mile is defined as exactly 1,609.344 metres, so 1 mile = 1.609344 km exactly.
Common values
| Miles | Kilometres |
|---|---|
| 1 | 1.609 |
| 2 | 3.219 |
| 3 | 4.828 |
| 5 | 8.047 |
| 10 | 16.093 |
| 13.1 (half marathon) | 21.082 |
| 20 | 32.187 |
| 26.2 (marathon) | 42.165 |
| 50 | 80.467 |
| 100 | 160.934 |
Worked out by Figure's own converter, rounded to 3 decimal places.
How to use it
Type a number in the top box and the answer appears in the bottom one as you type; type in the bottom box to go the other way. The round button swaps the units, the unit names open every other unit, and the Every unit list shows the same amount in all of them. Sums work in the boxes too. Nothing is uploaded and there is no account.
Good for:
- Running races: 5K, 10K, half marathons and marathons
- Road distances on signs and maps abroad
- Cycling and walking routes
- Car odometers and trip planning
- Comparing fitness-app distances
Questions
How many kilometres is 1 mile?
1 mile is exactly 1.609344 kilometres.
How many miles is a 5K?
A 5K is 3.11 miles, and a 10K is 6.21 miles.
How far is a marathon in kilometres and miles?
A marathon is 42.195 km, which is 26.22 miles.