| Cities | Distance |
|---|
| Siena to Karlovo | 682.01 mi (1,097.60 km) |
| Siena to Karnobat | 791.48 mi (1,273.76 km) |
| Siena to Kavarna | 852.41 mi (1,371.83 km) |
| Siena to Kazanlak | 712.09 mi (1,146.00 km) |
| Siena to Knezha | 639.56 mi (1,029.28 km) |
| Siena to Kostinbrod | 600.42 mi (966.27 km) |
| Siena to Kozloduy | 621.29 mi (999.87 km) |
| Siena to Kyustendil | 579.45 mi (932.54 km) |
| Siena to Levski | 692.75 mi (1,114.87 km) |
| Siena to Lom | 596.52 mi (960.00 km) |
| Siena to Lovech | 673.31 mi (1,083.58 km) |
| Siena to Lukovit | 645.26 mi (1,038.45 km) |
| Siena to Lyaskovets | 723.69 mi (1,164.67 km) |
| Siena to Mezdra | 622.16 mi (1,001.27 km) |
| Siena to Momchilgrad | 727.96 mi (1,171.55 km) |
