| Castiglion Fiorentino to Karlovo | 652.48 mi (1,050.06 km) |
| Castiglion Fiorentino to Karnobat | 761.91 mi (1,226.18 km) |
| Castiglion Fiorentino to Kavarna | 822.87 mi (1,324.28 km) |
| Castiglion Fiorentino to Kazanlak | 682.54 mi (1,098.45 km) |
| Castiglion Fiorentino to Knezha | 610.00 mi (981.70 km) |
| Castiglion Fiorentino to Kostinbrod | 570.87 mi (918.73 km) |
| Castiglion Fiorentino to Kozloduy | 591.77 mi (952.36 km) |
| Castiglion Fiorentino to Kyustendil | 550.09 mi (885.29 km) |
| Castiglion Fiorentino to Levski | 663.18 mi (1,067.28 km) |
| Castiglion Fiorentino to Lom | 567.01 mi (912.51 km) |
| Castiglion Fiorentino to Lovech | 643.73 mi (1,035.98 km) |
| Castiglion Fiorentino to Lukovit | 615.68 mi (990.85 km) |
| Castiglion Fiorentino to Lyaskovets | 694.11 mi (1,117.07 km) |
| Castiglion Fiorentino to Mezdra | 592.58 mi (953.66 km) |
| Castiglion Fiorentino to Momchilgrad | 698.73 mi (1,124.49 km) |
