Length and Area
mitokm
Convert miles (mi) to kilometres (km).
Factor1 mi = 1.609344 km
Converter
mi
Accepts numbers or expressions, e.g. 150 + 14.7
Result
km
Rendered to 6 significant figures.
Formula
Formula
km = mi × 1.609344
Multiply any value in miles by 1.609344 to obtain the value in kilometres.
Worked example
Convert 60 mi to km.
- 01Start with 60 mi.
- 02Multiply by the conversion factor: 60 × 1.609344 = 96.5606 km.
Result60 mi = 96.5606 km
Conversion table
| mi | km |
|---|---|
| 1 | 1.6093 |
| 2 | 3.2187 |
| 5 | 8.0467 |
| 10 | 16.093 |
| 20 | 32.187 |
| 50 | 80.467 |
| 100 | 160.93 |
| 200 | 321.87 |
| 500 | 804.67 |
| 1000 | 1609.3 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from mi to km?
1 mi equals 1.609344 km. To convert, multiply the value in miles by 1.609344.
How do I convert 1 mi to km?
1 mi = 1.60934 km. For any value, multiply by 1.609344.
How do I convert km back to mi?
Divide by the same factor — or equivalently, multiply by 0.6213712. So 1 km = 0.621371 mi.
When would I need to convert mile to kilometre?
Length conversions appear in piping, layout, and mechanical drawings — particularly when reconciling imperial fittings or instrument lengths with metric plant drawings.
Is the conversion exact?
Yes. Both mi and km are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).