KM to Miles Converter
Convert kilometers to miles instantly. Free km to mi converter for travel, running, and mapping.
Common conversions
Result
— mi
Conversion formula: multiply by 0.621371192237 (km → mi)
Related conversions
Need another unit? Open the full Unit Converter for every category.
About Kilometer to Mile
Quick answer: 1 km = 0.621371 mi. Conversion formula: multiply by 0.621371192237 (km → mi).
Why convert kilometer to mile?
Road signs, GPS apps, and race distances switch between kilometers and miles depending on country. Accurate conversion keeps trip planning and training logs consistent.
How to use this converter:
1. Confirm the From unit is Kilometer (km) and To is Mile (mi).
2. Enter any number — the result updates instantly.
3. Edit either field for bidirectional conversion, adjust precision, or tap Swap.
4. Copy the result when you need it in a report, label, or spreadsheet.
Common use cases:
- Road trip and fuel-range planning
- Running and cycling training plans
- Map scale and logistics routing
Example conversions
| Kilometer | Mile |
|---|---|
| 0.5 km | 0.310686 mi |
| 1 km | 0.621371 mi |
| 2 km | 1.242742 mi |
| 5 km | 3.106856 mi |
| 10 km | 6.213712 mi |
| 100 km | 62.137119 mi |
Frequently Asked Questions
How do you convert Kilometer to Mile?
Multiply the kilometer value by the conversion factor. Formula: multiply by 0.621371192237 (km → mi). Example: 1 km = 0.621371 mi.
How many mile are in 1 kilometer?
1 km = 0.6213711922 mi.
Is this converter accurate enough for professional use?
Yes. Linear conversions use internationally defined exact factors (SI and customary). Temperature uses exact scale relationships. Always confirm critical safety, medical, or legal measurements against your governing standard or instrument calibration.
Does conversion happen in my browser?
Yes. Values are converted locally in your browser. No account is required and your numbers are not uploaded to a server.
Can I convert Mile back to Kilometer?
Yes — use the Swap control in the converter, or open the dedicated Miles to KM page.