Unit converter
Miles to Kilometers Converter
Miles to kilometres conversion is common for road trips, running logs, cycling computers, treadmill screens, shipping ranges, and imported vehicle data. The mile in the unit table is exactly 1609.344 metres and the kilometre is 1000 metres, so the factor is exactly 1.609344. Enter miles to get the metric distance used on most maps, race plans, weather reports, and fuel or charging estimates without relying on a rounded 1.6 shortcut.
1 mile = 1.6093 kilometers
Common miles to kilometers values
| Miles | Kilometers |
|---|---|
| 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 |
| 50 mi | 80.4672 km |
| 100 mi | 160.93 km |
How to convert
- Begin with the distance measured in miles.
- Read the exact factor as 1609.344 / 1000 from the toBase values.
- Multiply miles by 1.609344 to convert the distance to kilometres.
- Leave the answer unrounded if it will feed a pace, fuel, or battery calculation.
- Mental trick: multiply by 1.6, then add 0.009344 km for each mile if you need the exact gap.
kilometres = miles * 1.609344
A mile is 1609.344 metres in the unit table, while a kilometre is 1000 metres. Dividing 1609.344 by 1000 gives the exact multiplier 1.609344.
- mi
- distance entered in miles
- 1.609344
- exact kilometres per mile
Worked example
A 12 mile training run is 12 * 1.609344, which equals 19.312128 km. A training log might show 19.31 km, while a route note may round it to 19.3 km.
Key facts
- 1 mi is exactly 1.609344 km.
- 3 mi is exactly 4.828032 km.
- 5 mi is exactly 8.04672 km.
- 26.2 mi is exactly 42.1648128 km.
Tips
- Use 1.6 for a fast estimate and expect the exact value to be slightly higher.
- Keep full precision when converting route length before calculating pace.
- For travel planning, round after summing all journey legs.
Frequently asked questions
How many kilometres are in 1 mile?+
There are exactly 1.609344 kilometres in 1 mile, from 1609.344 / 1000.
Is 10 miles the same as 16 kilometres?+
It is close but not exact. 10 miles equals exactly 16.09344 km.
Does this match UK and US road miles?+
Yes. Modern UK and US road distances use the international statute mile represented by 1609.344 metres.
How many miles are in 1 kilometre?+
One kilometre is exactly 1000 / 1609.344 miles, about 0.621371192237334 miles.
Things to watch
- Nautical miles use 1852 metres and need a different converter.
- Fitness devices may show small differences if they smooth GPS distance before conversion.
Sources
Last updated: 2026-01-01
Conversions use internationally defined factors. Provided for general use; verify critical measurements independently.