Enter a value and select Convert.
How to use this converter
Enter a signed decimal where allowed, then select Convert or press Enter. Comma decimals and expressions are rejected rather than guessed. Copy produces a plain conversion statement without promotional text.
Definition and review
Constants follow NIST Guide to the SI, Appendix B.8. Values are calculated locally; raw numbers are not uploaded, stored, placed in URLs, or included in analytics.
Need the opposite direction? Use the Miles to Kilometers Converter.
Common kilometers conversions
| Kilometers (km) | Miles (mi) |
|---|---|
| 1 km | 0.6213711922 mi |
| 5 km | 3.106855961 mi |
| 10 km | 6.213711922 mi |
| 21.0975 km | 13.10937873 mi |
| 42.195 km | 26.21875746 mi |
| 100 km | 62.13711922 mi |