Length
km to miles Converter
1 km = 0.62137 mi. Enter any value and the result updates instantly.
Convert
Accuracy and rounding
Use the decimal result for specifications. For tape measures, round only after you know the tolerance you need.
Km and miles are tied back to the SI meter through fixed definitions, so the underlying conversion factor is stable.
For cutting, fitting, drawings, and product specs, keep extra decimals in miles and round only at the final step.
How to convert km to miles
- Type the km value in the calculator.
- Keep km selected as the from unit and miles selected as the to unit.
- Use the instant result, or copy it with the copy button.
km to miles chart
| km | miles |
|---|---|
| 1 km | 0.62137 mi |
| 2 km | 1.2427 mi |
| 5 km | 3.1069 mi |
| 10 km | 6.2137 mi |
| 25 km | 15.5343 mi |
| 50 km | 31.0686 mi |
| 100 km | 62.1371 mi |
Formula
mi = km x 0.621371192237
Example: 1 km = 0.62137 mi.
Source
SI meter definitions and exact international inch, foot, yard, and mile relationships.
Common questions
How do I convert km to miles?
Enter the km value in the converter, or multiply by the factor shown in the formula. 1 km = 0.62137 mi.
What should I watch out for?
Round only after converting if the measurement is used for cutting, fitting, or specifications.
Where does this length conversion come from?
SI meter definitions and exact international inch, foot, yard, and mile relationships. ConverterBase uses stable definitions and fixed conversion factors, not live or rounded market data.