Miles to KM Converter
Convert miles to kilometers instantly. Accurate mi to km calculator with formula and examples.
Common conversions
Result
— km
Conversion formula: multiply by 1.609344 (mi → km)
Related conversions
Need another unit? Open the full Unit Converter for every category.
About Mile to Kilometer
Quick answer: 1 mi = 1.609344 km. Conversion formula: multiply by 1.609344 (mi → km).
Why convert mile to kilometer?
Most of the world uses kilometers for road distance. Converting miles to km is essential for international travel, shipping quotes, and athletic event distances.
How to use this converter:
1. Confirm the From unit is Mile (mi) and To is Kilometer (km).
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:
- International driving and rental car planning
- Marathon and race distance conversions
- Freight and logistics distance estimates
Example conversions
| Mile | Kilometer |
|---|---|
| 0.5 mi | 0.804672 km |
| 1 mi | 1.609344 km |
| 2 mi | 3.218688 km |
| 5 mi | 8.04672 km |
| 10 mi | 16.09344 km |
| 100 mi | 160.9344 km |
Frequently Asked Questions
How do you convert Mile to Kilometer?
Multiply the mile value by the conversion factor. Formula: multiply by 1.609344 (mi → km). Example: 1 mi = 1.609344 km.
How many kilometer are in 1 mile?
1 mi = 1.609344 km.
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 Kilometer back to Mile?
Yes — use the Swap control in the converter, or open the dedicated KM to Miles page.